Iritis is an inflammation of the iris, according to WebMD. Possible causes of iritis include blunt trauma and both infectious and non-infectious diseases, including psoriasis, tuberculosis, inflammatory bowel disease and Lyme disease.
Iritis usually affects only one eye, and symptoms can include redness, blurred vision, headaches and pain that can intensify under bright light, according to WebMD. Pain may be present in the brow area as well.
An individual should seek medical attention if experiencing eye pain, redness in the eye or blurred vision, states WebMD. Treatment may include prescription drops or pills, mild analgesics and the wearing of dark glasses. It is typically necessary to schedule follow-up visits with the doctor.