What is the treatment of color blindness?

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Color blindness occurs when cone cells, located in the retinal tissue at the back of the eye, do not function or are damaged. There are two main kinds of color blindness:

Red or green color blindness, the most common type, is congenital or inherited. It is far more common in males than females, but still very rare. It affects five to eight percent of males and 0.5 percent of females. For people with red or green color blindness, reds and greens look similar to each other in a kind of brownish, muted tone. There is also a blue or yellow type of color blindness, but it is rare.

A second, and less common, kind of color blindness is acquired, or related to an eye disease or condition. Retinal or optic nerve disorders are most likely to cause this kind of color blindness. In these cases, symptoms such as overall failing vision or persistent dark or white spots may be noticed first. An ophthalmologist may test for color blindness to help diagnose the problem. The doctor may start with an Ishihara screening test and, if that is positive, move to more sophisticated testing.

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