Uveitis means inflammation of the part of the eye called the uvea. The uvea, also called the uveal tract, is a continuous layer of fibrous tissue that surrounds the eye. It is made up of three structures:
The iris — The donut-shaped part that gives the eye its color
The choroid — A membrane full of tiny blood vessels that lines the eye
The ciliary body — A thick ring of tissue that helps control the shape of the lens, and is attached to the iris and to the front portion of the choroid
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