title: Suppurative interstitial ring keratitis due to streptococcus.
abstract: Three cases of interstitial ring abscess of the cornea caused by different strains of streptococcus are described. These infections occurred in three different clinical settings: after penetrating trauma at the limbus, after a cataract operation, and in conjunction with keratoconjunctivitis sicca. The acute appearance of a light, interstitial ring not extending to the limbus in the post-traumatized eye should alert the clinician to the possibility that a streptococcus may be responsible. The ring frequently progresses rapidly to a total ring abscess with intraocular extension. The outcome was poor in all three patients.
mesh_terms: D000368:Aged; D002648:Child; D005131:Eye Injuries / Q000150:complications*; D005260:Female; D006801:Humans; D007634:Keratitis / Q000175:diagnosis / Q000209:etiology / Q000382:microbiology* / Q000473:pathology; D007637:Keratoconjunctivitis / Q000150:complications*; D008875:Middle Aged; D013290:Streptococcal Infections / Q000175:diagnosis / Q000209:etiology*