Question #cec98

1 Answer
Jul 13, 2017

A deuteranope will be distinguished by a green color deficiency and a protanope will have a red color deficiency.

Explanation:

In the case of a deuteranope, a person afflicted with deuteranopia, the cones in the retina that usually process green light are color shifted towards red. This results in difficulty perceiving hues of green, yellow, and even into orange and red.
Deuteranopia was given this name from the consideration of green as the second primary color, anopia meaning blindness.

For a protanope, a person having protanopia, the problem can be more severe. Along with a color shift away from red, there is often confusion between red and green. And red objects also appear to be paler in color than surrounding objects of other colors. Protanopia was given its name from the consideration of red as the primary color.

There is more information here:
http://colorvisiontesting.com/color2.htm