Iritis is swelling and irritation, i.e. inflammation of the iris -> the structure that gives color to the eye.
The iris is located in the anterior part (anterior) of the uvea. Iritis is the most common type of uveitis. The cause of iritis can often not be determined. In some cases, iritis may be associated with eye trauma, genetic factors, or certain diseases.
It usually develops suddenly and can last for months. Iritis that develops suddenly, for hours or days, is known as acute iritis. Symptoms that develop gradually or last longer than three months indicate chronic iritis.
If left untreated, iritis can lead to glaucoma and a number of other pathological conditions, and ultimately to vision loss.