Iritis (i-RYE-tis) is inflammation that affects the colored ring around your eye's pupil (iris). The iris is a part of the middle layer of the eye (uvea), so iritis is a type of uveitis, also known as anterior uveitis.
Iritis, the most common type of uveitis, affects the front of your eye. The cause is often unknown. It can result from an underlying systemic condition or genetic factor.
If untreated, iritis could lead to glaucoma or vision loss. If you have symptoms of iritis, see your doctor as soon as possible.