Acquired syphilitic uveitis.

Secondary syphilis is an overlooked cause of iritis and posterior uveitis. Three cases of acquired syphilitic uveitis were observed, two of which occurred in male homosexuals. In the first patient, a delay in diagnosis and treatment led to irreversible loss of vision and visual field. In the latter two cases, an increased index of suspicion led to earlier diagnosis and treatment, with complete recovery of vision.