title: Acanthamoeba as a cause of peripheral ulcerative keratitis.
abstract: OBJECTIVE
  To report a case of peripheral ulcerative keratitis caused by Acanthamoeba.
  
  
  METHODS
  Case report and review of the literature. A 37-year-old woman with a history of pain and redness of the right eye with no apparent predisposing factors, on examination, revealed a peripheral ulcerative keratitis.
  
  
  RESULTS
  Microbiological investigations of the corneal infiltrate revealed Acanthamoeba cysts.
  
  
  CONCLUSIONS
  All cases of peripheral ulcerative keratitis should be subjected to routine microbiological evaluation including those for Acanthamoeba.
authors.affiliation: Aravind Eye Hospital and Postgraduate Institute of Ophthalmology, Madurai 625 020, Tamilnadu, India.
authors.forename: Arun Thomas
authors.initials: AT
authors.lastname: Moreira
authors.forename: N Venkatesh
authors.initials: NV
authors.lastname: Prajna
mesh_terms: D000048:Acanthamoeba / Q000302:isolation & purification; D000328:Adult; D000562:Amebiasis / Q000469:parasitology; D000818:Animals; D003320:Corneal Ulcer / Q000469:parasitology* / Q000473:pathology; D005260:Female; D006801:Humans