Can you tell me about iritis?

Inside eye inflamed: Iritis is a sterile inflammation of the internal parts of the eye. It causes pain, redness and light sensitivity and can lead to serious consequences if untreated. It is sometimes related to systemic GI and rheumatic illness as part of hyperimmunity in these conditions. But most are isolated, without any systemic components. It usually responds well to medication from your ophthalmologist.