title: Corneal Ring Infiltrates Caused bySerratia marcescensin a Patient with Human Immunodeficiency Virus.
abstract: OBJECTIVE
  To describe corneal ring infiltrates caused bySerratia marcescensin a patient with human immunodeficiency virus (HIV-1) who wore contact lenses.
  
  
  METHODS
  A case study of a patient with keratitis due to an infection caused byS. marcescensand exhibiting corneal ring infiltrates was reviewed for history, clinical manifestation, microscopic study, and management.
  
  
  RESULTS
  A 29-year-old man who had a history of contact lens wear and HIV-1 infection was admitted to hospital because of blurred vision, redness, and corneal infiltrates in the shape of a ring in the left eye. The visual acuity (VA) in both eyes was hand movement (uncorrected). Corneal scrapings were performed. The culture results of the corneal specimens revealedS. marcescens. The culture results of the contact lens disclosed the same organism. The corneal ulcer responded well to treatment with topical gentamycin sulfate 14 mg/ml. The final VA remained hand movement.
  
  
  CONCLUSIONS
  S. marcescenscan cause ring infiltrates in a HIV-1 patient who wears contact lenses. The treatment result forS. marcescenskeratitis in a HIV-1 patient who wore contact lenses was favorable after intensive use of fortified topical antibiotics.
authors.affiliation: Department of Ophthalmology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
authors.forename: Winai
authors.initials: W
authors.lastname: Chaidaroon
authors.affiliation: Department of Ophthalmology, Faculty of Medicine, Chiang Mai University, Chiang Mai, Thailand.
authors.forename: Sumet
authors.initials: S
authors.lastname: Supalaset
keywords: Contact lens; Corneal ring infiltrates; Human immunodeficiency virus; Serratia marcescens