Tests and diagnosis

By Mayo Clinic Staff

If you have trouble seeing certain colors, your eye doctor can test to see if you have a color deficiency. You're likely to be given a thorough eye exam and shown specially designed pictures made of dots that have numbers or shapes embedded in them.

If you have a color vision deficiency, you'll find it difficult or impossible to see some of the patterns in the dots.

Feb. 13, 2014

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