What are the causes of red-green color blindness?
In order for us to see in color, light is absorbed by visual pigments in the eye called photoreceptors. Cones, which can be one of three different pigments, are the photoreceptors that are responsible for color vision. Color is perceived when the brain compares electrical signals from the different types of cones. Color blindness is a vision disorder that affects how colors are perceived. Red-green color blindness, also known as deuteranopia, is the most common type of color blindness. It affects up to 8 percent of the male population. Deuteranopia results in problems perceiving the difference between red and green.
