Infection of the retina by cytomegalovirus characterized by retinal necrosis, hemorrhage, vessel sheathing, and retinal edema. Cytomegalovirus retinitis is a major opportunistic infection in aids patients and can cause blindness. The disease is cytomegalovirus retinitis (Monarch Disease Ontology id MONDO_0000878). Also known as: CMV retinitis, Cytomegaloviral Retinitis, Cytomegalovirus caused retinitis, Cytomegalovirus retinitis, Retinitis, Cytomegaloviral.