title: [Contact lens related corneal ulcers: clinical, microbiological and therapeutic features].
abstract: BACKGROUND
  Corneal ulcers in contact lens wearers are becoming more common, and can sometimes lead to severe complications. The purpose of this study is to define the epidemiological, clinical, microbiological and therapeutic considerations of these ulcers within the above context.
  
  
  METHODS
  We conducted an uncontrolled, descriptive, retrospective study of 51 patients presenting with contact lens related corneal ulcers to the ophthalmology department of the August 20, 1953 Hospital in Casablanca between January 2009 and January 2012.
  
  
  RESULTS
  The average age of our patients was 22 years, with a gender ratio of 7.5 female to male. General risk factors (diabetes and tuberculosis) were found in 17.5% of cases. The average length of hospital stay was 15 days. Of our patients, 58.8% wore cosmetic contact lenses and 41.18% wore therapeutic contact lenses. Mean duration prior to consultation was 5 days. The predominant clinical signs were eye pain and redness, with a decrease in visual acuity worse than 1/10 in 82.3% of patients. In 70.6% of cases, the ulcer was central. The average size was 4.3mm. An anterior chamber reaction was found in 47.1%. Corneal bacterial cultures were positive in 47.8%. Pathogens found were Staphylococcus aureus, Pseudomonas aeruginosa and Acanthamœba. Contact lens and solution cultures were positive in 73.6% of cases. Outcomes were favorable with local and systemic antibiotic treatment adapted to microbiological results in only 41.2% of cases. In the remaining patients, significant secondary opacities persisted.
  
  
  CONCLUSIONS
  Cosmetic and therapeutic contact lens wear is a major cause of corneal ulcer. Delayed consultation results in severe sequelae with persistently decreased visual acuity.
  
  
  CONCLUSIONS
  The ophthalmologist plays an important role in preventing complications of contact lens wear, through better hygiene instruction and follow-up of his or her patients.
authors.affiliation: Service d'ophtalmologie, hôpital 20 Août 1953, CHU Ibn Rochd, quartier des Hôpitaux Anfa, rue Lahcen-Laarjoune, Casablanca, Maroc. Electronic address: lbenhmidoune@gmail.com.
authors.forename: L
authors.initials: L
authors.lastname: Benhmidoune
authors.forename: A
authors.initials: A
authors.lastname: Bensemlali
authors.forename: M
authors.initials: M
authors.lastname: Bouazza
authors.forename: R
authors.initials: R
authors.lastname: Karami
authors.forename: H
authors.initials: H
authors.lastname: El Mansouri
authors.forename: M
authors.initials: M
authors.lastname: El Belhadji
authors.forename: R
authors.initials: R
authors.lastname: Rachid
authors.forename: A
authors.initials: A
authors.lastname: Chakib
authors.forename: A
authors.initials: A
authors.lastname: Amraoui
mesh_terms: D000048:Acanthamoeba / Q000302:isolation & purification; D000293:Adolescent; D000328:Adult; D003261:Contact Lenses / Q000009:adverse effects* / Q000382:microbiology*; D003320:Corneal Ulcer / Q000453:epidemiology / Q000382:microbiology* / Q000628:therapy*; D015818:Eye Infections, Bacterial / Q000453:epidemiology / Q000382:microbiology / Q000628:therapy; D015822:Eye Infections, Parasitic / Q000453:epidemiology / Q000628:therapy; D005260:Female; D006801:Humans; D007902:Length of Stay / Q000706:statistics & numerical data; D008297:Male; D011552:Pseudomonas Infections / Q000453:epidemiology / Q000628:therapy; D011550:Pseudomonas aeruginosa / Q000302:isolation & purification; D012307:Risk Factors; D013203:Staphylococcal Infections / Q000453:epidemiology / Q000628:therapy; D013211:Staphylococcus aureus / Q000302:isolation & purification; D055815:Young Adult
keywords: Abcès de cornée; Contact lenses; Corneal ulcer; Cosmetic lenses; Infectious keratitis; Kératites infectieuses; Lentilles cosmétiques; Lentilles de contact