Iritis is an inflammation of the colored part of the eye (iris)
that can cause redness, pain, light sensitivity, and in some cases, differing
pupil sizes. Left untreated, severe iritis can permanently affect vision.
Most people who develop iritis have recurring episodes. Although
iritis often occurs for unknown reasons, it can be linked to certain long-term
(chronic) diseases that cause inflammation, such as rheumatoid arthritis,
inflammatory bowel disease, or other disorders. It may also occur as a result
of infection, such as a herpes infection.
Iritis is diagnosed with a complete eye exam. Treatment includes
medicines given as eyedrops or by injection next to or inside the eye.