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Color Blind Check?
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Just like with everything else in the world there are degrees of severity. Is someone who is Blind 100% blind? no. Deaf? same thing not everyone who is deaf is 100% deaf.
For colorblindness a good app to test how bad you are is Color blind check. Being colorblind myself i found out that i'm only a 10/100 severe, while some of my other friends who do have day to day problems with wires and other things are 50/100. Its really better than those shitty number test that do nothing but show if you do/don't have color blindness but not how bad you are.
You get a phone with Android OS, take this test and do it in front of her.
If she still says you're not colorblind and that you're lying and acting, well then you have bigger problem with your mom than with your color vision.
In shortest, deuteranopia is red/green blindness, while deuteranomaly is red/green deficiency.
The difference is obvious, the first is total absence of red/gren perception and the world seems blue/yellow colored to people who have it - so no purple, green, orange, pink, or red perception in any variation, only blue/gray/yellow colors are perceived.
Deuteranomaly is milder form. People with it still perceive red/green dimension (and thus purple, orange, green, red, pink colors) but in a deficient way so that all those colors are more similar to blues and yellows compared to normal vision, which is why they fail color vision tests.
Simplest way to find out is by doing CBC test for Android (make sure you have no screen/color filters turned on). If you get severity less than 90/100 then it's almost certainly deuteranomaly (the lower the score the milder it is - 0 is normal vision). If you get a score higher than 90, then you have either strong deuteranomaly or deuteranopia. Those two are very similar and no online color vision test can diagnose the difference correctly. A lot of optometrists/ophthalmologists can't as well, you'd have to find a specialist for color vision to do that.
Give him this test and represent it as just a game of course. The test was actually made by a guy who's severely colorblind and wanted to test his young kids for colorblindness as well. I think if any test is applicable to children, it's that one.
Just a note regarding the test and your screen. Screen colors must be on default, so turn off ANY color filter if you maybe have it on and do the test in a darker room. The task is to tap on the little colored squares as soon as you spot them, so as quick as possible. At the end, the test shows the score as a combination of total points, PDT and severity scores. You can paste it all here if you want.
Ah okay. Also, the normal eye doctor probably doesn't know much more about colorblindness than you do. All they'll do is give you the quick test with the dots and numbers again. However, if he has reason to believe that the colorblindness is new, he should go to a doctor. Almost everybody is born with it.
I'd recommend this app, it's the most accurate test I've found: https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck (I think there's an iOS version as well)
May I ask why do you need a confirmation from an optician if you already know for sure that your son is colorblind? If you really need to get an official diagnosis for some reason, you don't take him to optician but to an opthalmologist (eye doctor).
You can give him color blind check test for Android to have a better insight into his type and severity of CVD.
Sounds like protan (I think). Have her take an online test, like the Ishihara test, or for more precise results have her take the test in this app.
So that would be called unilateral color vision deficiency. It is very abnormal and not related to typical forms of CVD where the opsins (proteins in the cones) are affected. It is often acquired, due to some kind of trauma that affected one eye (e.g. Staring in a laser) or a tumor on an optical nerve or the like. In your case, obviously something different. It is quite strange to have congenital unilateral CVD.
On top of that, what you describe isn't really typical symptoms of CVD, which is color discrimination. This is diagnosed through what you are probably familiar with as Ishihara tests. If you want to test yourself, I recommend ColorBlindCheck for Android. Do it once with each eye. I imagine you will come back normal both times.
What you describe is closer to a failure of your eyes/brain to perform chromatic adaptation. Honestly, I've never heard of anything like this.
Yup something very weird is going on with your vision. The first A on the left is just contrasted from the background meaning there is mostly brightness difference. All three RGB values are just increased in that letter compared to its surrounding background color, thus everyone should easily see it.
Have you ever tried this test ?
Confusing dark purples and dark blues with black, and light yellows with white, is almost a definite sign you have blue-yellow color vision deficiency. That one is much rarer compared to the other type - red/green deficiency - which is what 99.5% of all colorblinds have. That's why majority of color vision tests on the internet don't test for it and you pass all of them thinking your color vision is completely normal.
You can do these next tests to confirm:
Do THIS TEST on android phone and write down points, PDT and severity scores.
Watch THESE three YouTube videos, especially the hard level version, read the descriptions bellow, and write down the problematic timings if you have them.
As I understand it, any test that involves displaying something on your pc screen or phone has the risk that the colours won't be displayed accurately, so I guess if you have weak colour blindness the tests may not always work.
There are tests linked in this sub which are accurate as far as I know. I've also used the following app on my android phone (Not sure if its available for iOS)
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Ultimately the most accurate check will be with a medical professional though I think.
I'm not sure what tests you have tried but if you haven't already and If you have an android phone try this app. It's widely regarded as the most accurate CVD test.
Check out "Color Blind Check" https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
If you have an android phone try this app. It's widely regarded as the most accurate CVD test.
Check out "Color Blind Check" https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
You might have very mild deuteranomaly. What do you get on these two tests:
CBC test for android phone. Write down points, PDT and severity scores.
watch the hard level video, read the description bellow, and write down the problematic timings if you have them.
If you only can't see the gap on the 14th one, your vision is probably normal. I think mildest red-green deficiency have problems from 10th, 11th onwards.
These next two tests will give a better analyzis of your color vision
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
If you don't have Android and don't want to play with Android emulators, watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings if you have them.
Nobody sees this clearly because it's like 5% saturated green. It's barely visible for everyone. The only potential problem is that you see it as gray and don't recognize it's greenish, but that might just be your lower screen quality. If you're concerned that you might be colorblind just:
do THIS TEST on android phone and write down points, PDT and severity scores.
If you don't have Android and don't want to play with Android emulators, just watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings, if you have them.
Do the color blind check test for Android. Just tap on the colored squares as fast as you can, and report back here your PDT, points and severity result. It's possible that you have some form of redgreen deficiency.
Protan and deutan types are A LOT more common and they make up about 99% of all colorblind people. That is why almost all vision tests you find on the internet are oriented on testing red/green vision only (including Ishihara) and not blue/yellow (tritan) deficiency.
Color confusions characteristic for tritans are all the color pairs that differ in blue and/or yellow colors. Blue - purple is not precisely tritan confusion, but bluish indigo (or violet) - purple is. Your brain sees violet as a combination of dominantly blue and some red nerve signals, and it sees purple as a combination of a bit less blue and red nerve signals. Tritans have decreased blue response so they perceive that difference between those two similar blue levels as negligible, which is why the difference between those two colors (more vs less blue signal) is very small, so both colors appear as the same purple color. In case of red/green deficiency, they both appear as blue.
The best online tests that detect tritanomaly pretty accurately are these two
Color blind check test for Android.
colorlite test - just do the tritan (blue) test.
They're only as accurate as your monitor is calibrated. If you're getting normal vision you're probably not, at the very least, colorblind enough to really have to worry about it affecting you on a daily basis. At the same time, though, it's good to go to the doctor every once in a while just to check on your personal health. If you want to ensure the result is accurate, do the EnChroma test on multiple screens. Additionally, this app gives the most accurate results that you can get on a screen.
Color differentiation does get worse as one ages. However, if it's changing at a significant rate and it's worrying you go to an optometrist. It could be an early warning sign of an eye disease. Now, if you'd like to test if you're colorblind, go to this webpage. Additionally, if you have an Android device, download this app and take the test on it. This app is regarded as the most accurate test you can get on a device. The most accurate tests, however, can only be performed in-person due to there being variations between screen color calibration settings. Hope this helped!
Tritanopia is dichromacy where S cone type cells are completely missing, which causes complete loss of blue-yellow vision (only pink-teal vision is present, yellows appear as gray/white and purples are dark gray). So there is just one severity of it. Different severities are in anomalous trochromacy (protanomaly, deuteranomaly, and tritanomaly). So in tritanomaly, just like with protan and deutan types, there's basically a slider of near normal vision (slight severity) to strong severity (almost tritanopia).
Do CBC TEST for android phone. Screen colors must be on default, so turn off any color filter if you have it on and do the test in a darker room. The task is to tap on the little colored squares as soon as you spot them, so as quick as possible. At the end, the test shows your score as a combination of your total points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result off of it.
Do CBC TEST for android phone. Screen colors must be on default, so turn off any color filter if you have it on (including blue light filters) and do the test in a darker room. The task is to tap on the little colored squares as soon as you spot them, so as quick as possible. At the end, the test shows your score as a combination of your total points, PDT and severity scores. You can paste it all here.
For higher accuracy and to rule out any screen colors irregularity as a factor in your results, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result off of it.
Enchroma test is not so reliable, especialy not for detecting mild tritanomaly which from your description seems like is the deal with your vision.
Watch here the hard level video, read the description bellow, and write down the problematic timings.
Do THIS TEST on android phone and write down points, PDT and severity scores.
P. S. As above commentator has said, tetrachromatic stripe test is a total bs lie :) I remember it being on the news in my country and everyone laughing about it. There has only been confirmed 2 or 3 Functional Tetrachromats in the world, ever, and very special Rayleigh match test is required for it because tetrachromacy can never be tested on RGB electronic screens using only 3 primary lights :)
Seeing only reds and blues as gray is definitely very rare. Protanopes (red-green deficiency) see reddishpinks and teals as gray, while tritanopes (blue-yellow deficiency) see purples and yellows as grays, so it's maybe possible that you partially have both - red-green and blue-yellow deficiencies (achromatomaly). We can't say for sure until you do certain tests.
Make sure all color filters on your screen are turned off, including eye care, blue light filters, etc. It's important that the colors on your screen are on default.
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
Watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings.
Not enough to be certain because some screens simply produce lower blue levels, but it is possible blue-yellow deficiency.
Do THIS TEST on android phone. If you don't have Android and don't want to play with Android emulators, just watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings if you have them.
It was interesting, I let my family members watch me do the color blind check test and they were astounded that some of the squares took me so long to find, but it was also interesting that on some of them I saw them before they did. My dad kept saying stuff about 'false positives' because I was tapping squares he couldn't see, but at the end I was able to show him in the results that I had no wrong touchpoints.
Describing your color confusions is never enough because literally every single type can confuse any two colors. You have to do the test.
I recommend these two tests to everyone since they are the most accurate I know of
Color blind check test for Android.
RGB anomaloscope for PC.
That website is not a good indicator for colorblindness type.
Just do the color blind check test for Android.
RGB anomaloscope is very good one as well. If your resulting line falls from the center to the down-right then you're protan, if it stays near-flat you're deutan.
I'm interested to know what points and severity score you get on this test. Based on that we'd maybe be able to tell what percentage of people here would pass that OCV test.
In my experience, if someone says they have difficulty of distinguishing certain shades of colors, it almost certainly means they have some type of color vision deficiency. Just like the majority of us here, you are not blind to colors, you have just decreased sensitivity to some of the colors. Most of the times, colorblindness is exactly that - color vision deficiency.
I advise doing this vision test and see what you get.
Yeah that's a big mess.
If you have an android phone try this app instead. It's widely regarded as the most accurate CVD test.
Check out "Color Blind Check" https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
If you have a really hard time distinguishing vivid red from dark yellow, It sounds like strong protanomaly or protanopia. If you can find an android smartphone, it would be good to do THIS TEST. Just write down your points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
P. S. If you don't have android phone, you can install the test on windows via bluestacks android emulator.
You don't seem to have deuteranopia if you easily see the difference there. Have you ever done this test? How does the top gradient appear compared to the middle one in this image ?
Firstly I must comment those descriptions on that website
Deuteranopia:
> yellow and green appear red while blues look violet
Protanopia:
> Orange, red and yellow look greener and colors are dull
For such a popular website that comes out on second place when you google for "colorblind test", I can't believe how inaccurate that description is. In both protanopia and deuteranopia, green, yellow and red appear yellow. Yellow and green definitely don't appear reddish, and blues definitely don't appear violet (blue+ slight red) in any type nor severity of red-green colorblindness. Red-green dichromats don't have any red-green color vision and only see in blue-yellow, thus violet appears blue not the opposite.
As for your color vision, just do this test on android phone and come back with results if you want to discuss them. It will diagnose your vision in 2-3 minutes.
Two people with protanopia and deuteranopia actually see all the identical colors, but not in the same places. I explained the difference more profoundly in this comment. There is no type in-between protan and deutan because they both fall under the same red-green color deficiency. There are many slightly different eye cone positions in both protan and deutan cases (there are no two specific L and M cones sensitivities for each type, rather than dozens of different positions), so you almost certainly lean more towards one type than towards the other one. Two guys with deuteranopia for example, might have pretty different visions and brightness sensitivities to the EM spectrum.
And btw, you should do the color blind check test (you need an android phone for it though). Come back with results (points, severity, PDT score) if you want to discuss your vision.
Perhaps the moderators could add the Color Blind Check app to the masthead on the right? It seems to be one of the best tests out there, it does exactly what you're interested in, it shows the strength and the type (or a mix of types as the case may be sometimes): https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Sure, it's for Android smartphone though.
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en
If you don't have android you can install some Android emulator in Windows and then install the program from there.
After some research, I've found an app with a test I've not completed before: app
The results suggest 6 protan, 3 deutan, 0 tritan deficiencies.
I assume this is out of 10, but what's new to me is that I might be protanomolous and deutranomalous, but only half as much.
I have red-green deficiency. This app here is great: https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Because it gives you a score. That way improvements are measurable. The Ishihara Test is kind of hit or miss, so not very good for measuring.
I will try the app when tripping. But maybe it will just confuse me because the colors are changing. So pretty trippy in itself. The Ishihara test might be better for that reason because it has static colors. So I guess I will try both.
I can't quite figure out a straightforward explanation. Is it possible that you had an underlying congenital red-green colorblindness before your retinopathy kicked in? You can try taking a test using just your "good" eye.
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Synesthesia and colorblindness are two very different disorders. No it doesn't have anything to do with colorblindness. If you think you might be colorblind, do this test. Though considering you describe the world as "so colorful", I doubt you are. That's not something coor vision deficient person would say.
That's not how that app diagnoses color vision. You've done the wrong test.
Here's the link
Seems like red-green deficiency (protan or deutan). There's no real way to know until you do the isiob test. You can try the color blind check test for Android.
Their tritan test is very accurate. It literally discovers the smallest deficiency in blue-yellow vision, of course considering the test is done on the calibrated screen. If you score 3/10, it's pretty certain you have moderate-strong tritanomaly. Most of simple red/green vision tests are not exactly fully independent of blue/yellow vision, so strong tritanomaly can falsely give mild protan/deutan results on those kind of tests, even if your red/green vision is fully normal.
Color blind check test for Android has been proved on this sub as the most competent test so far, and the one that distinguishes protan/deutan/tritan types pretty accurately. Just pay attention to your PDT and severity scores. For example PDT 0-0-10 means the test found your vision to be 0% matched with Protan deficiency, 0% matched with Deutan deficiency, and 100% matched with TRITAN deficiency. 0/100 severity result is perfectly normal color vision, while 100/100 is dichromatic. Red/green and blue/yellow dichromats usually score in the 1300-1600 point range, monohromats about 300.
Just a note, for the test to give most accurate result, do it on a phone using sRGB color space (check your display settings), and of course turn all color/visual filters off, including blue/night eye saver. Colors must be completely on default.
In order for any online color vision test to consistently give accurate results, your screen must be calibrated and that test must be properly designed of course. Someone with normal vision would never get mild or moderate protan result on any test, so it's a pretty high possibility that you're protan. I suggest doing the colorblind check test for Android on a phone where all color filters are turned off. In case your phone uses wide color gamut you'd have to set the color gamut (in your display settings) on narrower sRGB color space for the test to produce maximum accuracy.
Your confusion comes from the god damn wrong English term that preoccupated this sub's name as well - color blindness. It's not colorblindness, it's color vision deficiency or CVD. There's like 20 people per month who come here with the same confusion as you have, so this should really become the top stickied post.
You're not blind to colors, you can see the world in color, but in fewer colors than normal vision, which is why you fail that test. Colors look normal to you because you've never had other people's perspectives to compare your vision to. You've learned to call the colors the same as others, just like the rest of us here, but you don't perceive those colors the same.
Do this test for Android next to your friend or family member that has normal color vision, and you'll understand. They see "invisible" colors my dude.
Green-brown is a classic confusion for redgreen color deficiency. Colorblindness is a wrong term actually. The correct one is Color Vison Deficiency because it can range from almost normal vision to being fully redgreen blind. Majority of people in this sub are CVD and can as well identify all primary colors.
If you think that you have it, just do the test
>I have a program generate every possible shade of pure green, red, and blue, they all look normal to me. No browns or greys.
That same thing applies for someone who has deuteranomaly or protanomaly. They don't see either browns or grays when they slide through pure R, G and B values. Everything you see is normal to you because it's been everything you've ever seen. You didn't have other people's perspective to compare your vision to, so you're not really reliable to conclude whether the colors you see are normal or not. Only color vision tests can conclude that.
>I wonder, how can this be? I've tested for abnormally good color vision, and I can see all the plain colors fine. So, how can I not see specific shades of dark red? I don't understand how a mixed color could appear off to me when all the pure colors look normal. I also don't understand why darker shades seem to cause more issues. In particular, my mother has recently been diagnosed as mildly green deficient (not enough to actually be colorblind though). In her case, it appears to be dark, sickly green that appears grey to her.
If you're a male and your mother is redgreen coor deficient, then you're 100% redgreen color deficient as well. If you're a female and your father has normal redgreen vision, then you'll have redgreen normal vision.
There's two possibilities I see here:
1) Your eye doc diagnosed you correctly and you're tripping things out.
2) your eye doc has missed to diagnose that you have some very mild form of red-green deficiency.
In either case, you can try Anomaloscope test and see whether you get some resulting line.
CBC test for Android is considered as one of the most precise tests that exist online. Tough keep in mind that your phone has to have sRGB color space applied for the test result to be viable.
For green colors it is normal, but I don't think tritans are supposed to see red darker and grayer. S cones that are problematic in tritanomaly, don't activate at all for colors in the red spectrum, so tritans shouldn't be experiencing any brightness loss on those colors.
You can try the color blind check test for Android.
If you have an android phone try this app. It's widely regarded as the most accurate CVD test.
Check out "Color Blind Check" https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
You seem to maybe have a bit more severe red/green color vision deficiency.
You can do the color blind check test on Android to see your exact type and severity. Just tap the little colored squares as soon as you notice them, so as fast as you can.
My best recommendation would be that you don't get him any glasses without knowing his type and severity of colorblindness first.
Install this test on your phone (requires Android OS) and make him somehow do the test if he's not uncomfortable with that. You can maybe say that you've found an interesting app online and show it to him. At the end, test shows type (protan, deutan, or tritan) and severity of colorblindness (number/100). 0/100 is normal vision, while 100/100 is severe deficiency where glasses can't help at all.
Glases are the most effective for mild deutans, which would be severities in the range of about 10/100 - 40/100. They work as well for moderate (40-80), but the stronger the severity is and the closer to 100/100 he is, the closer is glasses effectiveness to zero and the bigger chance is they'd do absolutely nothing for him.
By everything you wrote I'm pretty sure you have tritanomaly.
You can do the color blind check test for Android to check your severity more precisely. Just tap on the colored squares as soon as you notice them, so as fast as you can.
And make sure you don't have any color/visual filters turned on on your device before doing that test.
Mild protanomaly or deuteranomaly should pass CP3. Try color blind check test for Android to check your severity.
Optometrist is not an eye doc and you definitely don't wanna visit them for a problem like this. What you need is an ophthalmologist. Don't get stressed, it might have something to do with you being nervous. We see colors in our brains afterall not in our eyes.
Hownold are you, have you been on any kind of medications or drugs recently? Did you have any head injury, accident, looked at bright intense light or anything similar? Have you tried any of the online colorblind tests? If not I suggest this test since it can evaluate your current color vision pretty accurately. Just make sure to turn all color/night filter off on your screen.
If you have android phone, you should do this test and report back your PDT, points, and severity score, so we can see what's your type and severity of deficiency.
You can additionally do red/green and tritan(blue) tests from this page.
There are plenty of causes for acquired color blindness. Depending on your type it can be anything from drugs side effects, looking at the strong UV/sunlight, to certain eye diseases.
That's weird, the test suggest both red/green and blue/yellow color deficiency, which would equal achromatomaly.
Try CBC test for Android and see what you get. Also, make sure you have absolutely zero screen/color filters and apps turned on. Color settings must be on default.
Take tests on multiple screens and compare results. Also, if you own an Android device, take this test. The test I linked is regarded as the most accurate test you can get online.
If you have an Android phone, try colour blind check and report the results.
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Also Try some some of the tests on colorite as they can pick up mild colour blindness sometimes
If you have an android phone try this app. It's widely regarded as the most accurate CVD test.
Check out "Color Blind Check" https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
As for your dad, he sounds like he needs to educate himself. Anyone who says "end of story" as a way of ending a debate, sets off alarm bells for me. Good luck with everything, being colourblind isn't the end of the world, it can be quite humourous too. Only today I was told my outfit doesn't match, I thought I was wearing graphite grey jogging bottoms with a burnt orange hoodie, apparently the joggers are purple though!! Mistaking purple for grey is a new one on me, and I've known about my colourblindness for 35 years!
If you have an android phone try this app. It's widely regarded as the most accurate CVD test.
Check out "Color Blind Check" https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
You may well be ok. They will very likely be using the old style ishihara tests (coloured patterns on paper).
I guess the tests you have done have been online so far? These can be very hit and miss due to brightness, contrast and blue filter settings.
Try this one if you have an android phone, it has the best reputation among the online tests.
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
You just either try the enchroma test online or if you have an Android phone this is a really good app to identify colorblindness
>"am I colorblind or just stupid"
You wouldn't even believe how many posts with that exact titles were posted here. No you're not stupid of course, just color "blind" (color vision deficient). By everything you said I'm almost sure you're tritan (blue-yellow deficiency). A lot of tests online can't diagnose correctly tritan type, just a few are good at it. Try the next two tests:
CBC TEST for android phone. Screen colors must be on default, so turn off any color filter if you have it on and do the test in a darker room. The task is to tap on the little colored squares as soon as you spot them, so as quick as possible. At the end, the test shows your score as a combination of your total points, PDT and severity scores.
Turn brightness/contrast of your screen to high and watch these three YouTube videos in highest resolution on yt (720p). Just read the descriptions bellow, and report the problematic timings when the square dissapears and becomes untraceable (for example, 0:55-1:10 can't see it, etc).
Confusing green with teal seems like a blue-yellow deficiency (tritanomaly). You can check out these two tests:
Make sure your screen colors are on DEFAULT (so any types of color filters including blue light filter for the eye rest are not allowed) when doing ANY online colorblindness test. Turn brightness/contrast of your screen to high and watch these three YouTube videos in highest resolution on yt (720p). Just read the descriptions bellow, and report your problematic timings when the square dissapears and becomes untraceable (for example, 0:55-1:10 can't see it, etc).
Do CBC TEST for android phone. The task is to tap on the little colored squares as soon as you spot them, so as quick as possible. At the end, the test shows your score as a combination of your total points, PDT and severity scores. Just paste it all here if you want.
It is called Color Blind Check and i think it is developed by colorlitelens. Basically what i did was i did the long test, i took the result, and i put it into CVsimulator as the strenght of the filter. Then i turned on the correction, and looked for the best option for my case
Green vs orange, and pink vs teal, are classic redgreen deficiency color confusions (for both protans and deutans). I'm protan as well, on the milder side, and both of those seem very similar to me, so most probably your son got the gene for it. You can test him out with the CBC android test if you want. It was made by a guy with protanopia as well who wanted to test his kids colorvision. It's a very simple test where you just tap on the colored square, basically a game that anyone can play.
The cause of very mild deuteranomaly is the same as in any other deuteranomaly type - shifting of the M cones sensitivity range towards L cones. The only difference is the shifting value of the M cones is smaller in milder severities compared to stronger ones. So compared to normal vision you're also color deficient, but obviously less than others with stronger severities.
Btw, which CAD test you exactly passed on yt? I've uploaded three different difficulty levels here. Just make sure your screen colors are on DEFAULT (so any types of color filters.
You can also try the CBC TEST for android phone.
Enchroma test doesn't detect mild blue-yellow deficiency (tritanomaly)
Do CBC TEST for android phone. Screen colors must be on default, so turn off ANY color filter if you have it on and do the test in a darker room. The task is to tap on the little colored squares as soon as you spot them, so as quick as possible. At the end, the test shows your score as a combination of your total points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result off of it.
Turn brightness/contrast of your screen to high and watch these three YouTube videos in highest resolution (720p). Just read the descriptions bellow, and report the problematic timings when the square dissapears and becomes untraceable (for example, 0:37-0:43 can't see it, etc). Again, it wouldn't be bad to do the test on two completely different screens, just to rule out any possible screen colors irregularity as a factor in your results.
P. S. From your description everything pointed towards tritanomaly except the gray-turquoise confusion you mentioned. That's classic red/green deficiency confusion. Tritans confuse gray with yellow-green and grayish-purple hues, while they see turquoise fairly saturated and don't confuse it with gray.
This particular plate is orange color in the ring vs magenta-pink background. So the color difference is huge, there's nothing weird in it. I would see the gap form 30m distance at glance on this one. Assuming they're not kidding with you and that they really don't see it, they are somewhere between moderate tritanomaly and tritanopia. I'm not sure what other tests you gave them, a lot of them is orientated only to red-green deficiency so they might have missed it.
Show them the hard level CAD test. Set color settings of your screen on default, turn brightness/contrast on high and let them watch it in highest resolution on yt (720p). Just see their problematic timings when the square dissapears and becomes untraceable to them. As you can see in the comment section, all tritans lose it in the first 5-10 seconds at the begining, around 0:40-0:45, and around 1:22-end. If they really don't see the gap in that ring, their timings must approximately coincide with those above. If not, they're messing with you.
Later on, if they fail the video as tritans, you can give them the CBC TEST and see their severity more precisely.
Reds and purples together should definitely not be gray in tritan vision. Purples and yellows should. So that's a but atypical, I'm not sure.
Turn brightness/contrast of your screen to high and watch the had level video in highest resolution on yt (720p). Just read the description bellow, and report the problematic timings when the square dissapears and becomes untraceable (for example, 0:55-1:10 can't see it, etc). Also, it wouldn't be bad to do the test on two completely different screens, just to rule out any screen colors irregularity as a factor in your results.
You can also try out the CBC TEST for android phone to get a bit better perspective on the severity of deficiency. Screen colors must be on default, so turn off any color filter if you have it on and do the test in a darker room. The task is to tap on the little colored square as soon as you see it, so as quick as possible. At the end if the test you get result as a combination of total points, PDT and severity score. You can just paste it all here.
I probably should've mentioned to turn the brightness of your screen higher and to set up the resolution of that yt video to highest possible (720p). Also, make sure that you don't accidentally have ANY color filters turned on, for example blue light filters, colorblind mods, and things like those.
So if I understood correctly, you can NOT see it from the begining - 0:22, 0:50-1:05, and around 1:10-end? That's a bit undefined result because it indicates some mixture of both deuteranomaly and tritanomaly, which I think happened because of your screen and maybe low video resolution you mentioned, not because of your actual color vision. You can try it again with the settings I mentioned above and see if anything changes.
Also, try out CBC TEST for android phone. That test is very precise in determining severity and type of vision deficiency. As mentioned above, screen colors must be on default and do the test in a darker room. Your task is to tap on the colored squares as soon as you see them, so as quick as possible. Just write down here your points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
It only happens when the test itself is narrowly calibrated for very specific display color settings. Since each home user has different with different color gamuts, color quality and settings, tests like enchroma can never be valid to everyone. That's why most precise result is when you visit the eye doc who gives you the printed test in controled lighting conditions.
Before you do that, I can give you a test which relies less on the screen factors mentioned above.
CBC TEST for android phone. Screen colors must be on default, so turn off ANY color filter if you have it on (blue light filter, colorblind mods, etc) and do the test in a darker room. Your task is to tap on the colored squares as soon as you see them, so as quick as possible. Just write down here your points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result. For me, that one gives incredibly consistent severity results, even on different monitors.
If you don't have android, search for bluestacks Android emulator for windows, or other Android emulators for iOS, and install it from there.
>dark blue, and dark purple (for a fair bit of the spectrum) are black for me.
That sounds like classic tritanomaly (blue-yellow deficiency), maybe a bit stronger severity. A couple of tests I'll give you now will check that out pretty quickly:
CBC TEST for android phone. Your task is to tap on the colored squares as soon as you see them, so as quick as possible. Just write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
Watch these three YouTube videos, read the descriptions bellow, and write down the problematic timings.
Your colors of confusion resemble protan type of red/green deficiency (my own vision) pretty accurately.
Do the CBC TEST on android phone. Your task is to tap on the colored squares as soon as you see them, so as quick as possible. Just write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
As for the cure, the only option is gene therapy, and for now the only one who has been lucky to get it is this little guy.
>That's good advice right there, I'm going to make an appointment.
Before making an appointment, try out THIS TEST on Android phone. It's really accurate in severity diagnose. The point is to tap on the colored square as soon as you see it, so fastest possible. Just write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them.
Definitely these two
CBC TEST for android phone. The point is to tap on the colored squares as soon as you see them, so as quick as possible. Just write down points, PDT and severity scores.
Watch these three YouTube videos, read the descriptions bellow, and write down the problematic timings.
Deuteranomaly vision ranges from almost normal vision (very mild severity which is rare in deuteranomaly), through mild, moderate and strong severities, to extreme severity (deuteranopia) that posses no red-green vision at all. So the first thing you need to know is what severity of deuteranomaly you actually have (do THIS TEST on android phone).
All deuteranomaly simulations on the internet are showing soo many colors in the red-green spectrum that they practically only become valid for very mild deuteranomaly simulation. Moderate and strong deuteranomaly, and possibly even mild, distinguish (way) less colors than what it's shown in those simulations. Also one small thing to have in mind, is that the simulations you linked (as well as many others) are innacurate in a sense that they show yellow as being desaturated (washed out) in deuteranomaly. That is incorrect because all red-green colorblinds (protans and deutans) see yellow, as well as blue color, the same as normal vision.
These two tests will give a definite answer about your type, especialy the YouTube video.
Do THIS TEST on android phone and write down points, PDT and severity scores.
Watch the hard level YouTube video, read the description bellow, and write down the problematic timings.
Deuteranopia is practically an extreme severity of deuteranomaly. The symptoms are dissability to perceive any difference between red and yellow and green colors, as well as blues and purples. In general, if you can distinguish full saturated red from full saturated yellow in real life, when two colors appear identical in brightness, then you don't have deuteranopia.
Do THIS TEST on android phone. If you get on average less than 95/100 severity then you have deuteranomaly. Anything higher than 95 is EITHER very strong deuteranomaly or deuteranopia (the difference is pretty small between those anyway).
P. S. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
I'm assuming you're doing it on the same screen. Couple of possible reasons:
You might have changed the settings at the begining of the test (accuracy/duration of the test, screen colors quality (low, moderate or high) ).
You might be on the edge between strong and moderate severity, so sometimes you guess some of those tricky numbers and sometimes you don't.
For more accurate severity diagnosis do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
For most precise severity diagnosis, visit an ophthalmologist specialist for color vision who has the anomaloscope instrument (very rare to find).
For me (red-green deficient), 3 is super obvious, while 1 is a bit less obvious but I see it instantly as well. I think you might have some mild severity of tritanomaly, a well as /u/retard35
You both can try these next two tests and see what happens
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
Watch the hard level video, read the description bellow, and write down the problematic timings.
Protanomaly can be mild, but not very mild in severity like deuteranomaly can be.
>that suggests the L cone only exhibits a fairly large sensitivity shift, as opposed to the M cone which can have subtle shifts.
It's actually a bit different. L cones have about 20 different subtle positions, while M cones have about 10. Deutans don't have M class of pigments, only L, so someone with very mild deuteranomaly has two subtypes of L cones, still fairly distinct from each other. Mild protanomaly has two subtypes of M cones, which are closer to each other than in very mild deuteranomaly case.
>I'm fairly certain I'm in that 5% which you are describing
You can check it out on this test. In my experience so far, people with very mild deuteranomaly (slight severity) get severity in the range of 10-15. Mild ones get 20-30.
Yeah that website's results are confusing. Deutan and protan color visions are SUBtypes of the same TYPE of colorblindness - red/green deficiency. So you never can have both subtypes, everyone is always at least leaning more towards protan or deutan subtype.
Do THIS TEST on android phone and write down points, PDT and severity scores.
If you don't have Android and don't want to play with Android emulators, just watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings if you have them.
All colorblind test with static images (colors not changing like when watching a video) are hardly dependant on your screen settings/quality and thus can give wrong results. Test like those are accurate only when you do them on screens and lighting conditions they were exactly designed for.
The most accurate color vision tests for average home users, who vastly have different screens with different color settings, are the ones using dynamic colors change, like the next two:
Color blind check test for Android. Write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different phones and a couple of times on each of them, and take some average result.
If you don't have Android and don't want to play with Android emulators for windows, just watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings if you have them.
P. S. Before you do the tests just make sure you don't accidentally have any color filters turned on (like eye care for blue light, etc).
"Those colorblind tests" is a pretty wide term so it really depends on what test you're actually doing. If you barely still pass all of them, you have normal vision. If sometimes you can't see the number/figure on whatever the test you're doing, then you probably have mild color vision deficiency.
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
If you don't have Android and don't want to play with Android emulators, watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings.
It means you definitely have some kind of mild-moderate colorblindness, but that test is not the best one for accurate type diagnose.
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
If you don't have Android, watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings.
If it gave the same results on two different screens, almost definitely you have tritanomaly (blue-yellow deficiency). These two tests will give a pretty accurate diagnose of your vision:
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
If you don't have android, watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings.
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
Watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings.
Simulations of CAD test that military uses for diagnosing severity of colorblindness. Read the descriptions and then watch the video and write down the problematic timings where you can't follow the square.
1) Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
2) Watch THESE three YouTube videos, read the descriptions, and write down the problematic timings where you can't follow the square.
I think these two tests, or at least the first one, should be in the sidebar of this sub so I don't have to copy/paste it all the time.
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
Watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings where you can't see/follow the square.
You seem to have very mild deuteranomaly. Enchroma test is badly designed for detecting low severities of color vision deficiencies, especialy when it's done on newer types of screens which produce greater range of colors compared to what standard sRGB screens did 10-20 years ago.
Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
Watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings where you can't see/follow the square.
>I’m not colourblind but I do have problems with purples, reds, and browns.
That's the classic misconception about colorblindness which actually happens because of the wrong term - colorBLIND. The correct one is color vision deficiency because most of us here see blues and yellows normally, while pinks and teals are somewhat grayish compared to normal vision but still visible in higher saturation. How much grayish depends on the individual severity of CVD.
Do THIS TEST on android phone. If you don't have one, then watch THESE three YouTube videos after you read descriptions bellow the videos.
You seem to have very mild deuteranomaly. Enchroma test is badly designed for detecting low severities of color vision deficiencies, especialy when it's done on newer types of screens which produce greater range of colors compared to what standard sRGB screens did 10-20 years ago. Try out
1) Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
2) Watch THESE three YouTube videos, read the descriptions bellow, and write down the problematic timings where you can't see/follow the square.
You seem to have some very mild deficiency of either red-green or blue-yellow type. Can't really tell based on your descriptions but these two tests will certainly find out what's going on:
1) Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
2) Watch THESE three YouTube videos, read the descriptions, and write down the problematic timings where you can't follow the square.
Very mild tritanomaly (blue-yellow color vision deficiency) is usually missed by most of the internet tests because tritan type is rare (only 0.5% of all colorblinds). It would explain your struggle with green-blue and purple. Here's a couple of very sensitive tests that will check out your vision. Do them WITHOUT any filters on your screens.
1) Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and see what you get on average.
2) Watch THESE three YouTube videos in a dark environment and with high brightness (not necessarily maximum if it appears too bright), read the descriptions bellow, and write down the problematic timings if you have them.
By all your descriptions, you definitely DON'T seem to have ONLY deuteranomaly. Your vision seems like achromatomaly to me (combination of red-green AND blue-yellow color vision deficiency). A couple of tests I'll give you now will check that out pretty quickly:
1) Do this test LINK on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
2) Watch these three YouTube videos, read the descriptions, and write down the problematic timings.
Do this test on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Btw, mixing purple VS brown smells like blue-yellow deficiency not protan or deutan (red-green).
Do this test on android phone and write down points, PDT and severity scores. It's not necessary, but if you want higher accuracy do the test on a couple of different screens and at least two times on each of them, and take some average result.
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
You can use this. It's the most accurate I've seen, EVER:
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
It diagnoses several different types of colorblindness.
Enchroma test sometimes overlooks very mild red-green deficiency or mild blue-yellow deficiency. Their test is ok but their result page definitely is not.
Try these three:
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en (protan,deutan,tritan test)
https://www.colorlitelens.com/color-blind-test.html#Blue (tritan test)
https://ibb.co/c2Cv2LS (tritan test - scroll all the numbers down)
Pretty sure this is the best one
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Check this out, let me know what you score!
Color Blind Check for Android. https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Red-orange type of colorblindness doesn't exist. Whoever told you that, they either are not very knowledgeable of colorvision or they didn't want to be very specific with you about the type of your color vision deficiency.
There are mainly 3 types of color vision deficiencies:
Red/green deficiency (more accurately pink/teal) - makes up about 99.5% of all colorblind people. Those are protan and deutan types which basically see the world in same blue/yellow colors but don't have the same brightness sensitivity - deutans see red end of the EM spectrum brighter than protans while protans see blue-end slightly brighter
Blue/yellow deficiency - tritan type (about 0.4% of all colorblinds)
Monochromacy (0.1%) - see the world in shades of gray.
The first two come in many different severities, ranging from pretty mild where the pink/teal color dimension appears just mildly grayish, to extreme severities - protanopia and deuteranopia - where pink-gray-teal gradient aplears completely gray so the world appears in remaining blue/yellow hues. All other colors which are made of mixture of pink/teal and blue/yellow neural responses - like orange (yellow+pink), red(yellow+more pink), green(yellow+teal), purple(blue+pink) - appear yellow and blue since pink/teal signal is missing. In blue/yellow deficiency it's totally the opposite. World appears dominantly pink/teal colored and less blue/yellow compared to normal vision.
What you've described above, orange-red-pink confusion, is typical of blue-yellow deficiency but sometimes also for deutans. So I can't say for sure until you do these two tests:
If you have android phone, do this test and come back with results (points, PDT score, severity).
Watch this short youtube video and write down the timings when the square becomes hardly visible or starts disappearing.
If you want to be really certain, always check each test on at least two different screens. And turn off if you have any color-filters on your display.
Just a note, glasses don't allow any colorblind to see colors outside of their own visible color range. The titles you have probably seen in many commercials - "saw the color for the very first time", are false and misleading. Glasses only allow the person to experience the maximum saturation of THEIR OWN reds and greens they WERE always able to see. That's why they don't work at all on people with protanopia and deuteranopia (total red-green colorblindness), have very small effects on strong severities, and why they work the best on mild severities of deuteranomaly/protanomaly. In that regard, glasses can not ever make colorblind vision closer to normal. Red-green colorblinds have a minimum of three times saturation loss in pink-GRAY-tealgreen gradient (all those hues appear more grayish) and that is irreparable by any filter you put in front of their eyes.
BUT, even though all of the above is true, with some weird optical effect glasses CAN make the world appear richer with colors. To explain it in the simplest possible way - your normal vision eyes can maximally distinguish about 1-2 million different colors, but you don't see all of those colors in nature all the time. In fact, you mostly see about 30% of those (the colors of trees, grass, sky, etc are almost never maximally saturated and vivid like spectral colors). Mild-moderate red-green colorblind eyes distinguish, depending on the exact severity, about 4-10 times fewer colors than normal vision. But, in a perfect match, glasses allow the person to see in nature a high percentage of their total visible colors, including their maximally saturated spectral colors. So even though the colorblind vision would never become more similar to normal (vivid reds, pinks, purples, teals, greens can not be experienced the same, only blues and yellows can), a colorblind person might experience the nature in higher color variations, in higher saturation and in a more similar total color-richness to normal vision (but still less of course).
As for the type of glasses, I wouldn't go for the indoors because I think those give much less effect than outdoor ones on the bright sunny day. If you can, it'd be best to give those students this android app 2-min test and see in the results what their type and severity is. If they get severity higher than 90/100 (0/100 is normal vision, mild colorblindness is in 20-40 range), don't even bother with glasses, they probably won't work for them or will have a very small effect.
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en Let me know how much you scored? It's a very good app.
Tritanopia is pretty sever colorblindess. You can download an Android app....https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en
It's really good.
it's the most common form of colorblindness - deuteranopia or deuteranomaly. If you are severe that means your peak of green cones receptors sensitivity is shifted very close to the red receptors (which are normal in your case). That causes fewer color combinations between them since they are closer and receiving most of the light frequencies (colors) while overlaping, so you are distinguishing fewer colors than normal vision people. http://www.color-blindness.com/types-of-color-blindness/
Try doing this test http://www.enchroma.com/test/instructions/#&ui-state=dialog
and this one if you have android, it is more precise
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en
Color blind check:
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Try this. It's by far the best colorblindness checking app out there. https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Color Blind Check: https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
One of the funniest titles I've seen here for a while :)
By your description, I'd say you have protanopia or strong protanomaly. You can't perceive greens nor purples, pink is gray/white, so as teal/cyan. The red you see is most probably yellowish color with a small tint of redness that in normal vision is defined as dark orangish-yellow, or yellowish-brown color. It's nothing like the red normal vision sees, though you learned to call it the same, just like the rest of us here. After all, that's the deal with all of us. Depending on the individual's severity, we all here perceive red as something how normal vison perceives brown, but we of course learn to call it the same never actually realizing how different we see it.
As for your protan-deutan type confusion. Just take a look at this simple protan vs deutan image test
You can do the color blind check test for Android to check your severity more precisely.
If you don't have Android, do RGB anomaloscope test and just screenshots the resulting line.
>I need to find a reliable one. Are there any reputable online colour tests that provide quantitative results
What exactly do you mean by quantitative? Measure one's ability to distinguish colors or measure the severity of one's CVD? In any case, hue tests like X-rite are not even close to measuring any of that. They just scan for your errors and based on that conclude if you have normal vision (score 0) or colorvision deficiency (score between 0 and 100). Score 100 doesn't imply anything about how much color vision is reduced, nor score 50 is twice better than score 100.
There are basically no accurate free online tests that give you the information on how many colors one can distinguish. Something like that is pretty complex to make. You can Google for CAD vision test that was invented in UK I believe for pilots vision testing. It's by far the most accurate display test that was made so far, but it's definitely not free. It gives result in percentages by how much is red-green and/or blue-yellow vision decreased.
The only free replica of that test, that is similar but not the same, nor nearly has the same accuracy, is color blind check test for Android. It gives you the results in points, severity and PDT (protan-deutan-tritan) type diagnose. 0/100 severity score is normal vision result, while 100/100 is dichromacy and/or monochromacy. Quantitavely though, severity results are not linearly correlated between each other. 100/100 severity indeed represents about 1/100th of the normal color vision discrimination ability (0/100 result), but 50/100 is not just two times better color discrimination than 100/100. It's more like 10 times better than 100/100 and 10 times worse than 0/100. 25/100 would be like 4-5 times worse than 0/100, 15/100 3 times worse, etc. There's really no any official data about this, it's just my own approximations based on the experience I had with the test and on correlation between different severities of CVD and normal vision.
Also, keep in mind that for the numbers above to have any actual meaning, the severity result needs to be valid and accurate. In order for that to happen, test itself must be taken on appropriate display using default color settings and default color gamut settings (sRGB) that the test was designed for. Any other screen irregularities will produce false good/bad results. Something like that is not easy to obtain since everyone's phone basically uses slightly different colors, so the results will vary from device to device. That's why the most important thing to understand about color vision tests, is that no matter how good test you have, you have to do it in the appropriate conditions test was designed for. Otherwise the test is useless.
Hope this helps for your research.
Try the color blind check test for Android.
>I really wonder why I sometimes confuse pinks and oranges if all signs point to me having normal colour vision
There are two color opponent channels in human visual system generating normal color vision - blue vs yellow and red vs green. Those four colors (from two opponent channels) are the main primary colors your brain has invented. All other colors you see are created as a mixture from the combination of those two channels signals in your brain. For example, purple is a mixture of blue and red nerve signals, orange is yellow + red, cyan is green + blue, etc, you get the picture.
Now, because of the way that human visual system works, there are two main possible color vision deficiency types:
1) red/green deficiency (protan and deutan subtypes, basically same types of vision)
2) blue/yellow deficiency (also called tritan type)
Now the first one is A LOT more common and it makes up about 99% of all colorblind people. That is why almost all vision tests you find on the internet are oriented on testing red/green vision only, not blue/yellow. And if you pass them, they diagnose you with "normal color vision". Hell, even a lot of official institutions use only established old Ishihara plates test that exclusively discovers issues with red/green vision, not blue/yellow. One can be completely blue/yellow blind and pass Ishihara test and be diagnosed with "normal vision".
You seem to have that rarer blue/yellow deficiency type, pribably mild severity. Color confusions characteristic for tritans are all the color pairs that differ in blue and/or yellow colors. For example, your brain sees orange as a combination of red + yellow signals, and it sees pink as a combination of red + a little bit of blue signal. Since the difference between those colors is in exactly blue/yellow signals, that lack intensity in tritan type, confusion arises and both colors look just reddish. The same applies for some blue and green colors (both look cyanish), grayish purples and grays, gayish yellows and grays, pinks and purples...
The best online tests that detect tritanomaly pretty accurately are these two
Color blind check test for Android.
colorlite test - just do the tritan (blue) test.
Trust me, there's like 5 people each day that come up with the same confusion about their color vision as you have. Almost all of you guys/girls have very mild tritanomaly (blue-yellow vision deficiency). It is so mild that I personally would put it in the normal vision range. Blue-yellow vision is basically controlled by the S eye cones (short wavelength sensitive), which are convincingly the smallest in numbers in the retina and very sensitive (they make up only about 5-10% of all cones in the retina - link of the retina cones mosaic, S cones colored in blue.
It IS possible that S cones are genetically a bit different among people, that in some retinas there are a bit smaller numbers of them and that they are a bit less sensitive. After all, differences in normal visual acuity for example can be drastic, ranging from 20/5 - 20/20. So who's to say that everyone must have exactly the same color vision? So even color vision of people with normal vison differs pretty decently, but there are no casual internet tests to detect that, for now.
Sometimes though, mild tritanomaly can be acquired during a lifetime, from head/eye injuries or diseases, from excessive UV radiation or staring at the strong intensity light, or from side effects from a pretty big list of drugs out of which antidepressants are the leaders. It developes so slowly and it's very mild so people don't even notice.
You can do a couple of tests to see what's going on.
Turn brightness/contrast of your screen to high and watch the hard level video in highest resolution on yt (720p). Make sure your screen colors are on DEFAULT and that you don't use ANY kind of color filters including blue light filters. Just read the description bellow, and report the problematic timings when the square dissapears and becomes untraceable (for example, 0:55-1:10 can't see it, etc). Also, it wouldn't be bad to do the test on two completely different screens, just to rule out any screen colors irregularity as a factor in your results.
You can also try out the CBC TEST for android phone. Do the test in a darker room. The task is to tap on the little colored square as soon as you see it, so as quick as possible. At the end of the test you get result as a combination of total points, PDT and severity score. You can paste it all here if you want.
>every picture i saw showing red-green colorblindness vision shows reds as green and not yellow.
Then either you saw that color wrongly in the simulations or every simulation you've ever seen until now was false. Fully red-green colorblind people see the world in two hues and two hues only - blue and yellow. No green, no red, just those two. Here are the correct protanopia and deuteranopia simulations I've made some time ago.
>I may see fewer shades of red but other than darker red shades, it is a completely different color, and i don't have problems with it in tests either.
Just to make this clear. When you say shades of red - it considers red-black gradient that colorblind people don't have much problems with. The true problems are on the confusion lines for your protan type, which would be red-yellow-green gradient of equal brightness. Also, how many problems you have with certain color depends on your personal severity and on against what background you're seeing that color, and that depends on the quality of the tests you take. Internet is a huge place and you can find all sorts of things everywhere. In fact, only a handful amount of internet tests is going to diagnose you correctly, and that's only assuming your display colors are at least decently calibrated.
I suggest taking these two test for most accurate severity results:
CBC TEST for android phone. Screen colors must be on default, so turn off any color filter if you have it on and do the test in a darker room. Your task is to tap on the colored squares as soon as you see them, so as quick as possible. Just report your points, PDT and severity scores. For higher accuracy, if you want, you can do the test on a couple of different screens and a couple of times on each of them, and take some average result off of it.
Anomaloscope test. That one you have to do on your PC with a mouse because it requires precise slider adjustment that can't be done on smartphone.
If you have an android phone I would recommend this android app. If you have an iPhone though, I would recommend this online test, and this one. However if you believe you have trito then I would recommend this test instead of the other colorlite one. Hope this helps
CBC TEST for android phone
>So for example my green color acuity is somewhere around 15%-20% of normal, so rather poor. My res however is at about 90% of normal, so roughly normal for the most part.
That is physically impossible. The test which diagnosed you that is simply a bad design and not accurate. The reason it's impossible is because human color vision is based on opponent neural channels - blue/yellow, pink/teal-green (red-green colorblindness is actually pink-teal colorblindness because those two hues are confused with gray, not reds and greens) and black/white. You can not see blue badly and see yellow perfectly, or see pink vividly and not see green very well. Whatever the strength of your nerve signal is for pink chromaticity for example, it is identical for teal-green as well. One doesn't exist without the other. Completely blind people for example dont understant the concept of black because they can't see white at all. Black to them doesn't exist.
There might be one reason why you think your red vision is much closer to normal. Red colors are, even in normal vision, about 3 times higher in saturation than greens. So even if you double reduce both of red and green colors in colorblind vision, red will still stay much more vivid compared to green because of that standard higher saturation.
A couple of tests I'll give you now will check out your vision accurately:
1) Do THIS TEST on android phone and write down points, PDT and severity scores. For higher accuracy, if you want you can do the test on a couple of different screens and a couple of times on each of them, and take some average result.
2) Watch THESE three YouTube videos, read the descriptions, and write down the problematic timings. You'll notice there are usually two timestamps when square becomes untraceable for you (probably in the moderate or hard level video), and those two are when squre is colored in pink and teal-green.
Mabye? In This test, i do almost perfect
Ok, though it seems that some internet tests give more accurate diagnosis than some ophtalmologists believe it or not. I've recently met a guy here who has been diagnosed, by a 'professional', with protanopia+deuteranopia, while he has strong deuteranomaly for example. I guess not every ophthalmologist is color vision specialist and cares about giving exact diagnosis, so it's always worth checking on twice. In my experience, this test is never wrong about type, especialy in strong severities.
Just to clarify, I asked if you're sure that you're protan because you described protan simulations I linked as having dark green in them (compared to original red). It's something deutan would say. It's possible that your screen is just a bit off though and shows red light with too much brightness compared to default. That's why I always say that the more screens you use for each internet test, your result is more probable to be correct.
You probably have very mild deutan deficiency (pink/tealgreen deficiency) which is why some less sensitive tests miss it.
What this one says?
You can also check out these 3 videos to gain more perspective about your color weakness (read the descriptions).
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck Has been helpful to me
As far as I know, this glowing phenomenon is not related directly to deutan.
This app does a pretty comprehensive test and can give you nice info on your colorblindness:
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Give him this test made for android phone. It'll correctly diagnose his vision in 2 minutes. Confusing purple with brown is a sign of tritanomaly, yet it'd be very weird for a Tritan to have yellow as their favorite color because they see yellow as gray or grayish-yellow. Pink and teal are usually their favorites because they see those colors in normal vividness while purple and yellow are desaturated. Red-green colorblinds see yellow and blue in normal vividness while pinks and teals are desaturated towards gray.
>he can see a full colour range except for purple (=brown) & green (=yellow). we are assuming it’s tritanomaly
All colorblind individuals (red-green or blue-yellow deficient) have the entire color spectrum deformed compared to normal vision. It's because of how the human visual system works. It is organized into two opponent chromaticity channels that mix up in the brain - pink/teal and blue/yellow. So you can imagine that as two kinds of paints that mix together and create colors that we see. If you don't use one of the paints, the resulting color will be different, which is why the whole color spectrum is affected for everyone with any kind of color vision deficiency (of course less in milder severities), except for the unique hues of each channel - blue and yellow colors for red-green colorblinds, and pink and teal colors for blue/yellow colorblinds.
blue-purple-pink and orange-red confusions are present in both red-green (protan and deutan) and blue-yellow (tritan) colorblindness. So it's impossible to know what you have without doing a bit more sensitive test. Try THIS ONE and come back with results (PDT score, points and severity) if you want.
All those tests are inconclusive and don't give you any specific result after you've done. What do you get on this one ?
This test will diagnose you in a minute. I get about 2500 points and 60/100 severity 0-10-0 (deutan type). What's your score?
> Not really, I failed them hard when I was doing my driver license medical test, and had to visit and optician. After testing it was determined that my vision is healthy.
You're saying that you failed official color vision medical test for drivers licene, but you passed the one at your optician? That's insane because one of those two made a terrible mistake and uses faulty tests.
If you still have any doubts though, try this one and check back with results if you wish. Until now it diagnosed everyone correctly. You'd need an Android phone for it though
Hm, we can't conclude anything from that. The most precise test I give to everyone is this one
https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en
Every other test on the internet can make mistakes in color vision diagnose, especially for mild tritanomaly (mild blue-yellow deficiency). That one has been always correct so far, though you need an android phone to install it.
Do this test on android phone and check back with results if you wish. If you haven't already, visit r/colorblind sub, you'll find many useful things there.
Everything you wrote implies that you almost certainly have a tritan type (blue-yellow deficiency). A very small number of tests on the internet accurately diagnose tritans (I personally found only one or two at most so far), especially if it's mild tritanomaly in question. Most of the tests are calibrated only for red/green deficiency (protan and deutan types that make up about 99.5% of all colorblind people), which is probably why you got false-positive deutan results on some of them.
Do this test on android phone and you can come back with results (points, PDT score, and severity) if you wish to discuss them. I am almost 100% sure you only have tritan type, even though you mention dark-green/brown confusion which is characteristic for deutans. But I bet the browns you mentioned are some yellowish-browns that you see kind of grayish, the same as yellowish-greens. That still falls under the tritan color confusion line category, so sometimes, there are those special color confusions that all three types (protan, deutan, tritan) share together.
> I get different shades of green, green and yellow and green and blue mixed up. They all look gray ish and muddy. I don't understand why people see yellow as a strong "light" colour. Its unsaturated and is more green.
> Shades of pink, purple, red and some blues are very very saturated and easy to see. I love pink and red cause those are super saturated.
All of this indicates much more that you have blue-yellow (tritan) colorblindness than classic red-green (protan or deutan types). Enchroma test results are unreliable sometimes, especially with mild tritanomaly results and it happened many times on this sub.
Can you do the tests bellow and come back with results?
CBC check app for android - it'd be really good to find some android phone (if you don't have one) to do this test since it is definitely the most precise one made for home use. Just write here your severity, PDT and points score.
colorlite tests - just do the top two tests -> red/green and tritan(blue) tests, and write down your results (e.g. on the first one I got 9/14 and on second 10/10).
RGB anomaloscope - only for detecting red/green colorblindness. After you finish the test describe here from where to where the resulting line goes (if there is any line in the first place)
tritan numbers test - just scroll down and try to read as many numbers as you can.
>Is the Isihara test precise enough when differentiating between dichromatic and trichromatic vision?
I am almost 100% sure Ishihara test can NOT differentiate between strong deuteranomaly and deuteranopia. True Nagel anomaloscope test for sure CAN, but I think that one is very rare to find in any optometrist office.
Have you tried RGB anomaloscope test and cbc check app? I also made these two images in which a deuteranope should not see a difference between fully saturated red and green in one of the color pairs (or that difference would appear very very slight).
https://i.ibb.co/3zX184H/DEUTAN-possible-red-green-confusion-1.png
https://i.ibb.co/CV12Nsw/DEUTAN-possible-red-green-confusion-2.png
Are you sure you're thinking of the right kind of colorblindness? I'm no expert, but one would think that's definitely a Tritanopic sounding situation. There is an absolutely wonderful app on the Google Play Store that has been recommended numerous times on this sub. I'll link it here: https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Let us know the results you get, and don't be afraid to take the test a few times if you feel unsure! (The idea is to tap the areas of squares that stick out. Over time, the squares stick out more and more.) And make sure to use the full test, not the quick version!
Again, please do inform us of the results, and don't worry too much about it all :)
That's because the internet is a huge place and not all tests are of equal quality. Some are more dependent on your screen quality/settings and your type of color vision deficiency, and some are less. In general, for home use, the best and most precise tests are the ones not using static color images rather than dynamic brightness change. Those exponentially decrease the potential error in your results, and for me personally, these next two tests have always been giving the identical results:
color blind check app for Android
RGB anomaloscope - only for testing red/green CVD
For detecting blue-yellow colorblindness, the best one which catches even the mildest severity is colorlite test
Do you mind me asking, if you remember of course, what color grass green turned to? By theory, people with tritanomaly should perceive pinks and tealgreens the same as normal vision, while purpleblues and yellow start turning gray. How much gray depends on the severity of course.
So color of the grass, by theory, should've transformed to aqua-green instead of being standard green, if that makes sense. Tritanomaly lacks yellow and blue chromaticity response, so basically all colors become less blue and yellow, and more shifted towards red and tealgreen. For example, skyblue should be shifted towards teal, orange appears more reddish, yellow more grayish, green looks less yellowish (more teal), etc.
I suppose your vision was professionally examined after the accident, but just so you know, if you maybe have any doubts, this test is also very precise in determining type and severity of colorblindness.
> You can show me red, blue, yellow, everything and i would see them. But my problem is sometimes I can't distinguish them. This has been frustrating me because colorblind people literally cant see certain colors so i can't call myself that.
You completely misunderstood what colorblindness actually is. That happens very often especially with people from English speaking countries, because of the confusing term which is being used. Colorblindness in 75% of the time is not blindness to colors, but color vision deficiency, which is exactly what you described above. People with CVD have decreased redgreen color discrimination, and thus they still SEE red and green colors but they have troubles distinguishing certain pairs of colors because of the reduced redgreen neural signal reaching the brain. Only about 25% of people with colorblindness have the extreme severity of the condition called protanopia and deuteranopia, where redgreen discrimination is zero and their vision is purely blue-yellow. Most of us are just like you.
Btw, I saw someone in the comments here gave you a test that you scored perfectly (0 mistake). Just so you know there are many bad tests on the internet which give false results - that was one of them. I also scored with normal result (0) and I know I am redgreen colorblind. So yeah, some tests are simply bad and don't work for everyone.
The enchroma one you did is alright, but not the best. If you want to know precisely as possible how severe your deficiency is, do THIS ONE. It's for Android, if you don't have it you can install some good Android emulator in Windows and then install the software from there. You can write your results here if you want more details, to compare or anything like that.
Also, RGB anomaloscope is a very good and simple test and is a simplified version of the Nagel anomaloscope test.
SO... if you have Android, download the Color Blind Test by colblinder: https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Use it to figure out if you're primarily protan or deutan. Most people have a little cross over, so it helps to know which one you are more colorblind in. If you're have more of a protanomaly, you need the protan specific lenses from Enchroma. I made the mistake of buying a pair with their regular lenses, which are better made for dueteranomaly. They helped me see that green traffic lights, which normally look pretty white to me, but that was about it and I was a little disappointed.
When I realized I was more protan, and that you have to get protan specific lenses, I bought another pair with the protan lenses, and it made a world of difference. Purple flowers that normally look blue to me almost look bright pink. Reds stand out way better in fields of dark greens. Remember, they aren't helping you see new colors, just shifting some colors into ones you can differentiate. I would say they are worth it for going outside and enjoying a kind of new world, but as far as these two pictures go, it's very subtle and I don't notice much.
TLDR; great for hiking and enjoying a new experience outdoors, not super great for photo editing. Need to make sure you get the right type of lenses for your colorblindness.
>I'm not sure about my results because when the normal vs tritanomaly gradient pops up, I can definitely see some differences between the two.
That's totally normal. Mild severities of any colorblindness type can distinguish between simulations and original images. It's because simulations are intended to show to normal vision folks how things look like in colorblind eyes. They are not made so you can not distinguish the difference, some other kind of tests do that. Btw, that sim is not very accurate so I'd not take it as a fact.
You failing 8, 9 and 10 image test is almost a definite proof you have mild tritanomaly. Just do this test for confirmation.
>I didn't say anything about being a dichromat or having any -nopia, but have deficiencies that show up in both protanomaly specific and deuteranomaly specific tests.
I didn't either said anything about you having anopia!? Your score showing deutan signs, next to strong protanomaly, either means that specific test you're using is not that precise, or, more probably, your display device is not showing precise colors (not calibrated). As I've said, there is a third very rare option that your two cones cells are indeed settled somewhere in between protans and deutans, but that would in no way make your vision worse than someone's who is pure protan or deutan. Having strong protanomaly "+" moderate deuteranomaly doesn't mean your color vision is poorer compared to just strong protanomaly. In the matter of fact, it'd be pretty much the same. That was my point about that.
>I also never said that I distinguish less colours, but meant that the variations that I see and the colours that I mistake are often different to what other people describe from their specific protanomaly or deuteranomaly. Even moreso with that I'm not trying to say I'm special in any way - I was just trying to show you that there are variations in the way people see things
I really don't understand you now. You say you are different from both protans and deutans but at the same time you're not special? That sounds pretty special If you ask me. Red-green colorblindness is in fact very straightforward, and both protans and deutans form a very well known array of confusion lines which is the main basis on how colorblind tests are made. Your description sounds like you have some elements of tritanomaly in your vision, or maybe lowered counts of L and M cone cells. That is the only thing that could potentially make your vision different (worse) than a classic red-green colorblind vision.
How good was your visual acuity through life?
Have you ever done this test?
P. S. I'll upload the colorblind charts I was talking about when I get to my computer. Currently I am not able to do it, but I'll certainly inform you when I do.
As for you, if you wanna get some real accurate results, the display must be 100% calibrated FOR the specific test you're doing. Obviously anomaloscope is the best in determining the severity of CVD but since almost none of us have access to it, here is one of the most accurate ones you will do online. Download link: https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
If you don't have an android phone, it's possible to do it on the computer and download the test via Blue Stacks software for Windows - LINK. Then just download "colorblind check" app via playstore (which is already built in blue stacks).
Define mild? I consider myself very mild deutan ... I notice maybe twice a year. And the colorblindness test on this app I just downloaded rated me at a 49/100 on a severity scale
Hi! I'm also a mild-moderate protan! You can find a great and an accurate test on the Play Market https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en I get around 2500 on this test, when you will take the test share your results :) I don't think it is necessary to go to an optician, because it will not change anything, and if they don't have an anamaloscope to check your severity it's useless.
I wonder how much super mild gets on colorblind check test?
Nice! Thank you! By the way how did you figure out that you have very mild protanomaly and not mild or moderate? What results do you get on the colorblind check app? https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en
Actually i am not sure :/ i can't figure out how i am supposed to decide how bright is the red for me CBD app : https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en
Can you see the number on this one? http://imgur.com/TiWdxpz And what score do you get on the Color blind check app? https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck&hl=en
Interesting!
Try the test here, they do pretty good categorization http://enchroma.com/test/instructions/
Also, this app uses a very different test, try it out too https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
The EnChroma test has me as Mild Protan, confirmed with Color Blind Check Android app (30/100 mostly Protan) and setting the Chromatic Vision Simulator iOS app at 30/100 Protan indeed has the best match with what I observe.
The Enchroma glasses help me to observe colors more accurately (see my Cx 25 review). People with normal color vision probably don't realize how relaxing a green field can be if the color is actually green.
- Enchroma doesn't test for tritan, so tritans will get normal results usually.
- Use this app for an ideal test. https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck
Yeah, you're colorblind. It says "fuck the colorblind." (I had to have my coworker read it for me.)
Edit: Check yourself https://play.google.com/store/apps/details?id=ch.colblindor.colorblindcheck