Color blindness is a rare condition, but the chances of being affected are increased in those with a family history of the condition. A red-green color vision deficiency may affect a person's vision, color perception, and comprehension of colors. Colors can appear in various hues and ranges, and the inability to distinguish these differences can be a problem.

To test for color blindness you need to complete the Ishihara test. This test is used to determine whether you have a color vision defect. You will need to look at a series of plates displayed on your screen.