I don't get it.. What really is color blindness then?

Question

I always thought I was red/green color blind because I was never able to see the shapes, text, and numbers inside those circles, however according to this article,
http://critiquewall.com/2007/12/10/blindness if I were color blind, I wouldn't be able to see the difference between the sets of two images either. But I can see an obvious difference between the red and the green hues. Why can't I see the anything in the dot tests?

Answer 1

You may be colorblind, but red-green is only one type. There's a range of severity from not being able to distinguish colors at all, to not being able to distinguish ones that are similar in hue (this is more the saturation of the color, such as light and dark). If you can see the difference between the paired photographs, you don't have one of the more severe forms of color blindness. The dot tests are a little more tricky - the colors are more similar in hue, and sometimes two hues (a lighter and darker of the two different colors) are used - this will determine if you can recognize the dots that may be lighter or darker, or neither. Or one number might be in a more "orange" shade of red while another is in a more "purple" to test to what degree the addition of other colors affects your ability to interpret "red" on a green background.

This doesn't mean that you specifically can't "see" colors - you just perceive them differently than other people.

Answer 2

I'm 12 and i just did a report on color blindness but there are differen't iresias tests (dot in the circle tests) for differant types of color blindness

Answer 3

There are other types of color blindness, red-green is the only type which is common to most men. There are
Total color blindness
Partial color blindness
Red-green
Dichromacy (protanopia and deuteranopia)
Anomalous trichromacy (protanomaly and deuteranomaly)
Blue-yellow
Dichromacy (tritanopia)
Anomalous trichromacy (tritanomaly)

Answer 4

You are a red / green confuser. The error only occurs in a small range.

Answer 5

maybe your vision is mest up not your color vision take it again and really look for the number my uncle is color blind, but he can see differences because one is darker gray than the other

Answer 6

idk.. ask your eyes