title: Unusual morphology in orthokeratology contact lens-related cornea ulcer.
abstract: OBJECTIVE
  To report a case of unusual ulcer morphology in orthokeratology-related corneal ulcer.
  
  
  METHODS
  A single observational case report of a 14-year-old Chinese female myope with a 1.5-month experience wearing overnight B.E. orthokeratology (Capricornia) lenses and presenting with a right stellate-shaped central cornea abscess. Cornea scrapings for Gram stains, culture, and antibiotic sensitivity were performed. The patient was prescribed hourly fortified cefazolin and gentamicin drops.
  
  
  RESULTS
  Pseudomonas aeruginosa grew on blood and chocolate agar cultures. The ulcer was successfully treated with antibiotics and reepithelialized over 5 days. There was a residual central corneal scar. The refraction changed from -4.25 sphere OD and -1.75 -1.75 x160 OS to -3.50 -1.50 x160 OD and -1.50 -1.75 x165, giving a visual acuity of 20/ 25 OD and 20/20 OS.
  
  
  CONCLUSIONS
  A flatter fit of orthokeratology lenses may be associated with unusual cornea ulcer morphology.
authors.affiliation: The Eye Institute at National University Hospital, Singapore.
authors.forename: Jenn-Chyuan
authors.initials: JC
authors.lastname: Wang
authors.forename: Li
authors.initials: L
authors.lastname: Lim
mesh_terms: D000293:Adolescent; D002437:Cefazolin / Q000627:therapeutic use; D003261:Contact Lenses / Q000009:adverse effects*; D003320:Corneal Ulcer / Q000188:drug therapy / Q000382:microbiology / Q000473:pathology*; D004359:Drug Therapy, Combination / Q000627:therapeutic use; D015818:Eye Infections, Bacterial / Q000188:drug therapy / Q000209:etiology / Q000473:pathology*; D005260:Female; D005839:Gentamicins / Q000627:therapeutic use; D006801:Humans; D009216:Myopia / Q000628:therapy; D016459:Prosthesis-Related Infections / Q000188:drug therapy / Q000382:microbiology / Q000473:pathology*; D011552:Pseudomonas Infections / Q000188:drug therapy / Q000209:etiology / Q000473:pathology*; D011550:Pseudomonas aeruginosa / Q000302:isolation & purification
chemical_list: D005839:Gentamicins; D002437:Cefazolin