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Symptoms and Signs of Iritis

Doctor's Notes on Iritis

Iritis is inflammation of iris, the circular colored portion in the front area of the eye. Signs and symptoms of iritis often develop quickly; they include eye pain (usually only one eye), increased severity of pain when the eye is exposed to bright light, reddish sclera, blurry vision, small or irregularly shaped pupil and/or increased tear production.

Known causes of iritis are blunt trauma to the eye, infections (for example, Lyme disease, herpes, toxoplasmosis, syphilis and TB). Iritis has been associated with IBD, sarcoidosis, juvenile rheumatoid arthritis and other systemic diseases. Often, no cause or associated cause is found.

Medical Author:
Medically Reviewed on 3/11/2019


Kasper, D.L., et al., eds. Harrison's Principles of Internal Medicine, 19th Ed. United States: McGraw-Hill Education, 2015.