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Uveitis is a relatively common inflammation of the Iris and Ciliary body. It usually starts suddenly with severe pain, intense photophobia (sensitivity to bright lights and pain from bright lights) and blurred vision.

The eye appears very red, the vessels around the edge of the cornea are engorged. The eye is also very watery especially when exposed to bright light, and the eye ball often feels very tender when touched.

Exudatate containing protein and inflammatory cells can often be sen in the aqueous humor in the anterior chamber and these can deposit on the posterior surface of the cornea forming Keratic Precipitates.

Posterior synechiae can also form, these are adhesions between the iris and the anterior surface of the lens.

The disease may occur in healthy individuals. However about 40% of cases are associated with Ankylosing Spondylitis and about 30% with Reiters Syndrome. Ulcerative colitis, Chron's disease and acute sarcoidosis also have associations with uveitis.

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