title: Contact lens induced keratitis associated with contact lens wear.
abstract: OBJECTIVE
  To evaluate clinical characteristics, risk factors, management and outcome of contact lens induced keratitis (CLIK) associated with contact lens wear.
  
  
  METHODS
  The study comprised all consecutive patients presenting with contact lens related presumed microbial keratitis during a 12-month period at our department. Detailed demographic data, type of contact lens, duration of lens wear, wearing schedule and lens hygiene were derived from a self-administered questionnaire. Severity of ulcer, corneal scrapings, treatment and final outcome were evaluated.
  
  
  RESULTS
  27 patients with CLIK, some of which may have been sterile peripheral infiltrates, due to contact lens wear were detected. In the majority of the cases patients had used disposable soft contact lenses (89%) and most of them had a daily wearing schedule (78%). 51.8% patients cleaned their lenses regularly. 6 (22%) applied no disinfection since their lenses were disposable on removal. In 3 of our cases with CLIK, penetrating keratoplasty had to be performed.
  
  
  CONCLUSIONS
  Disposable contact lenses seem to have been a predisposing factor for contact lens induced keratitis also when used on a daily wear schedule. Insufficient contact lens care products and/or manufacturing characteristics may be responsible for CLIK, which is also observed in otherwise compliant contact lens users. In 3 of our patients with CLIK keratoplasty became necessary, indicating that contact lens induced keratitis may result in severe corneal complications.
authors.affiliation: Department of Ophthalmology, University of Vienna Medical School, Vienna, Austria. irene.ruhswurm@univie.ac.at
authors.forename: I
authors.initials: I
authors.lastname: Dejaco-Ruhswurm
authors.forename: U
authors.initials: U
authors.lastname: Scholz
authors.forename: G
authors.initials: G
authors.lastname: Hanselmayer
authors.forename: C
authors.initials: C
authors.lastname: Skorpik
mesh_terms: D000328:Adult; D018639:Contact Lens Solutions / Q000627:therapeutic use; D003263:Contact Lenses, Hydrophilic / Q000009:adverse effects*; D003320:Corneal Ulcer / Q000209:etiology* / Q000601:surgery; D004203:Disinfection / Q000379:methods; D004209:Disposable Equipment; D005260:Female; D006801:Humans; D015948:Keratoplasty, Penetrating; D008297:Male; D012307:Risk Factors; D011795:Surveys and Questionnaires; D013997:Time Factors; D014792:Visual Acuity
chemical_list: D018639:Contact Lens Solutions