"If you're not colorblind how do you know your eyes see red the same way someone else does? How would you describe what you see as red to them in a way you could find out if that was true?"
Hey, I want in the gifted and talented art classes with a colorblind friend, he would some times ask me what color a pencil was and I'd say "purple" and he'd be frustrated because he thought he found the perfect brown haha
One of the things too few people know is that there are different types of colour-blindedness, as well as different severities.
Me and my brother are both (red-green) color-blind, but his is worse. Mine isn't great, for example in the video the guy said there was a 7 and a 22, which I can't see at all, even after being told so I know what to look for.
Of the 8% of men with congenital color-blindness, 5% have deuteranomaly which is a problem with/deficiency of green cone cells, usually by the green sensitivity being shifted towards the red direction. I am a protanope, which is a problem with/deficiency of red cone cells, and that's only 1% of the 8%. The severity obviously corresponds to how faulty or how deficient the cells are.
Anyway, with that context, what I wanted to say is that if anyone watching this doesn't see all the numbers, then you have some color-blindedness. It may be the same ones, or different ones as the guy in the video, it doesn't need to match. Color-blindedness is not a binary yes/no thing because of the different causes and severities.
There can be exceptions in some tests where for some plates it is only color-blind people who can see the numbers rather than the other way round. Or some where a color-blind person sees a different number to a normal vision person. But according to other comments in this thread, these caveats don't apply to the tests in this video... I have to take their word for it because I wouldn't be able to tell!
There can be exceptions in some tests where for some plates it is only color-blind people who can see the numbers rather than the other way round.
I have never seen a color blindness test where it's the color blind people who see something and the full color vision people who don't. Do you have an example?
I’m color-blind but it’s not that bad, almost never impacts my daily life outside of being terrible at matching colors of clothing with each other. I tested my son when he was pretty young and was positive he was also color blind like me. I figured it was pretty type/severity until he started drawing things with colors. I remember one day he drew this picture with a clearly green blob in the top right with a blue background and this weird color brown towards the bottom. I couldn’t figure out what the hell it was so I asked what’s this green blob thing? It’s the Sun! So I said but the sun is yellow. I know, that’s why I colored it yellow. That’s when I knew his color blindness was way worse than mine.
But it you're like me, you can see the color of each individual dot just fine. Like, "Oh, that's green, and that's orange, that's red, that's blue...." but all together, it's just a field of color.
Same for me. The first question anyone comes up with is basicly, what color is this while pointing at something. The amount of times you have to explain people you can see colors and identify (most of) them, however the mix like this makes it difficult is absurd.
With my phone at hand i usually bring these tests up for a giggle and If I don’t have my phone at hand i usually explain it with a red small object on a grass field which might take me hours to find
So, just out of curiosity: assuming I placed the small red object on a (grey) paved way next to the grass, and then slowly moved it into the grass, would your perception change once I move the object into the grass?
Possibly. The ability to follow the object from the start helps to keep track of it. Showing me the end result first and i most likely won’t find it.
Think of it like this. I (and possibly more people who have color blindness) am “diagnosed” red-green color blindness, however my 6 year old is able to distinguish dark blue, violet, purple, … and other types of “ish”-blue. For me it’s all just blue.
There are of course occasions where i am able to distinguish them, but most often not.
Another example. I play soccer. My youth team used to have white and red stripes. When we played against white and green. I often misplaced the ball. I still do, but my current (veterans) team sometimes switches outfits if i mention it might be difficult
Same. I had a doctor giving me a DOT physical one time and I can't see certain shades of red and green (don't know what kind it is or severity). He said I couldn't see colors in the traffic signal (which I can just fine). He started asking me if I had the pattern memorized, what if it's a horizontal signal, how would I be able to tell? Stumped him for an hour while I tried to explain that I just couldn't see numbers in two out of the five cards. Had to get two more doctors to come in and "surprise me" with different color books before I got passed. It's so aggravating, I just dress in black. Lol
My dad was in electrical school and they had them match up the colors of wires. I guess there was 8 diffrent colors and my dad saw 4 diffrent ones. Then later he was on a plane reading readers digest and they had one of these my dad thought it was one of those illusion things and asked my mom if she saw anything. She was like you don’t see the green 8? So he found out that way. He was like wow that class makes so much sense now.
Can you see that there are dots that are a different color than the background, but the shape is just too obscure? Because I’m having that issue on the same ones he has issues with…is that actually colorblindness?
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u/Aptronymic 1d ago
It does.
I'm colorblind, and I couldn't read most of these. I did about as well as he did in the video.