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Q: I have two different color eyes. My left eye is a lighter shade of brown than the right one. What causes this?

A: The medical term for eyes of different color is "heterochromia." One eye can be an entirely different color than the other eye, or part of the iris of one eye can include more than one color. If this condition has been present since birth, it was most likely inherited from a parent. If this is a new finding, you should be examined by an ophthalmologist, since it can be associated with injury, bleeding, inflammation or increased pressure (glaucoma) in the eye.

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