[Retinitis and chorioretinitis].
Retinitis and chorioretinitis (uveitis) are usually due to an infection. By far their most frequent cause is a late recurrence of congenital toxoplasmosis, a disease which can be diagnosed clinically and which, in the absence of therapeutic errors, generally follows a favourable course. Among other types of uveitis, cytomegalovirus retinitis is fairly frequent in immunocompromised subjects.