title: Gemella haemolysans infectious crystalline keratopathy.
abstract: OBJECTIVE
  To report a case of infectious crystalline keratopathy caused by Gemella haemolysans.
  
  
  METHODS
  Observational case report. A 65-year-old woman underwent penetrating keratoplasty for contact lens-related Acanthamoeba keratitis and developed a nonhealing epithelial defect. Despite continued prophylaxis with topical gatifloxacin, small superficial stromal opacities were noted and cultured 6 months after penetrating keratoplasty. The opacities coalesced into a fine, crystalline keratopathy in the superficial stroma with persistent overlying epithelial defect.
  
  
  RESULTS
  Culture results from corneal scraping showed more than 100 colonies of G. haemolysans. Topical vancomycin was instituted, with complete resolution of the crystalline keratopathy and epithelial defect over the next 2 months.
  
  
  CONCLUSIONS
  G. haemolysans can be a causative organism of infectious crystalline keratopathy. This infection can arise in a postkeratoplasty patient despite prophylaxis with a fourth-generation fluoroquinolone.
authors.affiliation: Department of Ophthalmology and Visual Sciences, University of Illinois Medical Center, Chicago Eye and Ear Infirmary, Chicago, IL, USA.
authors.forename: Mohammed K
authors.initials: MK
authors.lastname: Elmallah
authors.forename: Wuqaas M
authors.initials: WM
authors.lastname: Munir
authors.forename: William M
authors.initials: WM
authors.lastname: Janda
authors.forename: Elmer Y
authors.initials: EY
authors.lastname: Tu
mesh_terms: D000287:Administration, Topical; D000368:Aged; D000900:Anti-Bacterial Agents / Q000627:therapeutic use; D003316:Corneal Diseases / Q000175:diagnosis / Q000188:drug therapy / Q000382:microbiology*; D019573:Epithelium, Corneal / Q000187:drug effects / Q000382:microbiology / Q000473:pathology; D015818:Eye Infections, Bacterial / Q000175:diagnosis / Q000188:drug therapy / Q000382:microbiology*; D005260:Female; D016908:Gram-Positive Bacterial Infections / Q000175:diagnosis / Q000188:drug therapy / Q000382:microbiology*; D006801:Humans; D015948:Keratoplasty, Penetrating; D011183:Postoperative Complications; D040141:Staphylococcaceae / Q000302:isolation & purification*; D014640:Vancomycin / Q000627:therapeutic use
chemical_list: D000900:Anti-Bacterial Agents; D014640:Vancomycin