Color Vision Tests Medical Test

A color vision test checks your ability to distinguish between different colors. Ishihara's test for color deficiency is designed to give a quick and accurate assessment of color vision. This version of the test should only be used as a screening tool and not replace evaluation by a professional. There are no risks associated with this test. In some circumstances, color vision testing is used to evaluate the function of the optic nerve. The optic nerve is the main nerve connecting the eye to the brain. Changes in color vision can often be the first sign of a vision problem. A child with Color Vision Deficiency may have difficulties when his or her perceptions clash with normal color perceptions. No medical treatment can cure the color vision deficiency, but greater awareness of the condition can minimize any difficulties. Color vision tests only detect a problem; further testing is needed to identify what is causing the problem.

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