3 ms·

Very. Colour vision defects are not something you really want to have.

• misterman0 8y ago
  I know many who have them and know they are crippling but in another type of world where our colors aren't as important, would these defects still be a handicap? Or have we manufactured a society that cripple those with a certain gene combination? Edit: spelling
  • danieltillett 8y ago
    Actually modern society protects those that have colour vision defects much more than societies of the past. In the past if your vision wasn't perfect you tended to die, now days you can be completely blind and live a long life. Colour vision is not much help under low light conditions which is the reason our distant shrew-like ancestors lost their colour vision in the first place.
    • misterman0 8y ago
      >> Colour vision is not much help under low light conditions which is the reason our distant shrew-like ancestors lost their colour vision in the first place. You seem to have authority, clearly, but doesn't your statement very precisely support my claim that we are now living in a society that dis-favor the color-blind? Our ancestors lost their ability to distinguish colors but now (all of a sudden) color seems very important. So we have in fact started, very recently, to select for non-color blindness. No?