title: An outbreak of Fusarium keratitis associated with contact lens wear in Singapore.
abstract: BACKGROUND
  Fungal keratitis is a potentially blinding condition that is rarely seen with contact lens wear.
  
  
  OBJECTIVE
  To describe a nationwide outbreak of fungal keratitis caused by Fusarium species among contact lens wearers in Singapore.
  
  
  METHODS
  Nationwide, hospital-based case series. All cases of fungal keratitis among contact lens wearers in all ophthalmology departments in Singapore were reviewed along with the charts of all contact lens wearers with culture-proven fungal keratitis from March 2005 through May 2006. A standardized telephone interview was conducted to obtain additional clinical information.
  
  
  METHODS
  Diagnosis of Fusarium keratitis associated with contact lens wear.
  
  
  RESULTS
  During the study period, 66 patients (68 affected eyes) were diagnosed with Fusarium keratitis associated with contact lens wear; the estimated annual national incidence is 2.35 cases per 10,000 contact lens wearers (95% confidence interval, 0.62-7.22). Patients ranged in age from 13 to 44 years (mean [SD], 27.1 [8.4] years), of which 32 (48.5%) were men. The vast majority (65 patients; 98.5%) wore soft, disposable contact lenses; 62 patients (93.9%) reported using 1 brand of contact lens cleaning solution (ReNu, Bausch & Lomb, Rochester, NY), including 42 patients (63.6%) who recalled using ReNu with MoistureLoc. Most patients (81.8%) reported poor contact lens hygiene practices, including overnight use of daily wear contact lenses (19.7%), and use of contact lenses past the replacement date (43.9%). The final best-corrected visual acuity ranged from 20/20 to 20/80. Five patients (5 eyes; 7.4%) required emergency therapeutic or tectonic corneal transplantation.
  
  
  CONCLUSIONS
  A new and evolving epidemic of Fusarium keratitis associated with contact lens wear was found in Singapore. Physicians and eye care practitioners worldwide need to be aware of the likelihood of similar outbreaks emerging among contact lens wearers.
authors.affiliation: ,Singapore Eye Research Institute, Singapore.
authors.forename: Wei-Boon
authors.initials: WB
authors.lastname: Khor
authors.forename: Tin
authors.initials: T
authors.lastname: Aung
authors.forename: Seang-Mei
authors.initials: SM
authors.lastname: Saw
authors.forename: Tien-Yin
authors.initials: TY
authors.lastname: Wong
authors.forename: Paul A
authors.initials: PA
authors.lastname: Tambyah
authors.forename: Ai-Ling
authors.initials: AL
authors.lastname: Tan
authors.forename: Roger
authors.initials: R
authors.lastname: Beuerman
authors.forename: Li
authors.initials: L
authors.lastname: Lim
authors.forename: Wing-Kwong
authors.initials: WK
authors.lastname: Chan
authors.forename: Wee-Jin
authors.initials: WJ
authors.lastname: Heng
authors.forename: Jimmy
authors.initials: J
authors.lastname: Lim
authors.forename: Raymond S K
authors.initials: RS
authors.lastname: Loh
authors.forename: Sao-Bing
authors.initials: SB
authors.lastname: Lee
authors.forename: Donald T H
authors.initials: DT
authors.lastname: Tan
mesh_terms: D000293:Adolescent; D000328:Adult; D018639:Contact Lens Solutions; D003261:Contact Lenses / Q000009:adverse effects; D004196:Disease Outbreaks; D015821:Eye Infections, Fungal / Q000453:epidemiology* / Q000382:microbiology* / Q000628:therapy; D005260:Female; D005670:Fusarium / Q000302:isolation & purification*; D006801:Humans; D007634:Keratitis / Q000453:epidemiology* / Q000382:microbiology* / Q000628:therapy; D008297:Male; D008875:Middle Aged; D012846:Singapore / Q000453:epidemiology
chemical_list: D018639:Contact Lens Solutions