Iris

Reviewed By David C. Dugdale III, MD, Professor of Medicine, Division of General Medicine, Department…more »

Definition

The iris is the colored portion of the eye located between the cornea and lens. The iris' round, central opening (the pupil) contracts and dilates to control the entrance of light into the eye, allowing you to see well under a variety of lighting conditions.

Date Last Reviewed: 08/11/2009

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Iris

Definition

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Iris

Definition

Iris Images

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