DefinitionBy Mayo Clinic staff
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|Anatomy of the eye|
Iritis (i-RYE-tis) is inflammation that affects a part of your eye called the iris. The iris is the colored ring of tissue surrounding your pupil. It's part of the middle layer of the eye known as the uvea, which is why this condition is considered a type of uveitis (u-ve-I-tis), or inflammation of the uvea. Because the iris is located at the front of the uvea, iritis is sometimes called anterior uveitis.
The cause of iritis is often unknown. But sometimes, iritis results from an underlying condition or genetic factor.
Iritis is a serious condition that, if left untreated, could lead to glaucoma or blindness. If you have symptoms of iritis, see your doctor as soon as possible for evaluation and treatment.
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