title: Extended wear contact lens related bacterial keratitis.
abstract: OBJECTIVE
  To report the clinical findings and visual outcome of patients with extended wear contact lens (EWCL) related bacterial keratitis.
  
  
  METHODS
  11 cases with EWCL related bacterial keratitis were included. Corneal scrapings were obtained for cytology and cultures.
  
  
  RESULTS
  Nine patients had unilateral bacterial keratitis and two patients showed bilateral involvement. Corneal scrapings revealed Pseudomonas aeruginosa in seven patients, Staphylococcus aureus coagulase positive in one patient, and Staphylococcus epidermidis in three patients.
  
  
  CONCLUSIONS
  EWCLs may be associated with bacterial keratitis and may result in visual loss. Dispensing contact lenses by optometrists should be performed in consultation with ophthalmologists.
authors.affiliation: The Eye Center and The Eye Foundation for Research in Ophthalmology, Riyadh, Saudi Arabia.
authors.forename: K F
authors.initials: KF
authors.lastname: Tabbara
authors.forename: H F
authors.initials: HF
authors.lastname: El-Sheikh
authors.forename: B
authors.initials: B
authors.lastname: Aabed
mesh_terms: D000293:Adolescent; D000328:Adult; D003262:Contact Lenses, Extended-Wear / Q000382:microbiology*; D005260:Female; D006801:Humans; D007634:Keratitis / Q000382:microbiology* / Q000503:physiopathology; D008297:Male; D008875:Middle Aged; D011552:Pseudomonas Infections / Q000175:diagnosis* / Q000503:physiopathology; D012529:Saudi Arabia; D013203:Staphylococcal Infections / Q000175:diagnosis* / Q000503:physiopathology; D013212:Staphylococcus epidermidis; D014792:Visual Acuity