My husband and I went to an exhibition about the solar system at our local natural history museum. There was also an exhibition for children about the human body with really good explanations how genes work, how our ear works, stuff like that.

We came to the part about the eyes and there was an explanation of colorblindness and the different forms together with the tests. You know - the circles with dots where you have to read the number. Anyway, I forgot why but he started reading out the numbers. And well, he got one of them wrong. Not the test for full-on red-green blindness, but he can’t tell certain shades apart.

In hindsight I had noticed that he sometimes confuses names for colors apart from the basic ones or that he doesn’t like it when I identify an object by its color (e.g. “give me the pink one”). But I’d always chalked it up to German not being his mother language.

        • remon@ani.social
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          2 days ago

          This could be cultural, especially in SEA some languages don’t even distinguish between blue and green. Or it could be the rather rare form of colour blindness called Tritanopes. Deuteranopes is the more common red-green one.

    • remon@ani.social
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      2 days ago

      You’ll usually see red as red and green as green. It’s just that under some lighting conditions they look the same, so your brain will has to pick one. For the most part there are enough context clues for your brain to figure out what colour it actually is, which why it can go unnoticed for a long time, especially if only have a mild version.

        • remon@ani.social
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          2 days ago

          Exactly. Some shades of red/green (also reddish-brown) just look the same. But they don’t look grey, because grey looks different :D

    • Waldelfe@feddit.orgOP
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      3 days ago

      There are several different types of color blindness, so it depends. In case of reds greens blindness I think they see both as grey.

    • Saprophyte@lemmy.world
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      2 days ago

      I have a type of color blindness called tritanomaly, which is blue/green deficiency. I can still see most greens and some blues but there’s a range I can’t see. They’re sometimes gray or silver and other times I can watch the color kind of vaguely flicker between silver and blue while looking at it. We discovered it when I was a teenager but I didn’t officially get diagnosed until in my 30s.