title: Prevalence of contact lens related complications in a tertiary eye centre in India.
abstract: OBJECTIVE
  To determine the prevalence of contact lens related complications in a tertiary eye care centre in India.
  
  
  METHODS
  A retrospective review of the charts of 1255 patients who visited our contact lens clinic during 2001-2004 was conducted. The inclusion criteria included patients of at least 18 years of age, having refractive errors and keratoconus. Exclusion criteria included previous corneal surgeries and pediatric patients. 190 subjects with lens related complications were identified from among 923 patients who were using lenses.
  
  
  RESULTS
  The prevalence of contact lens complications was 20.58%. Females with complications were more common (59.47%). The complications were more common in students. The most common complications were contact lens induced papillary conjunctivitis (CLPC) (6.39%), corneal vascularisation (4%), and superficial punctate keratitis (SPK) (3.5%). The total complications were less prevalent in patients wearing rigid gas permeable (RGP) lenses as compared to soft contact lenses. Infectious keratitis was noted in 8 eyes. Pseudomonas aeuroginosa was the most common organism isolated. The average daily wear with RGP lenses was 11.04±3.7h and 10.96±3h with soft contact lens. The highest number of complications was noted in 47.89% patients who were wearing lenses for excess of 11h. The number of patients with complications arising due to sleeping with the lenses was 74 (38.95%).
  
  
  CONCLUSIONS
  Prevalence of contact lens complications was more in soft contact lens wearers compared to RGP wearers. CLPC was the most common complication followed by vascularisation and SPK.
authors.affiliation: Bausch & Lomb School of Optometry, L V Prasad Eye Institute, Hyderabad, India.
authors.forename: Tumati
authors.initials: T
authors.lastname: Nagachandrika
authors.forename: Uday
authors.initials: U
authors.lastname: Kumar
authors.forename: Srikanth
authors.initials: S
authors.lastname: Dumpati
authors.forename: Swathi
authors.initials: S
authors.lastname: Chary
authors.forename: Preeji S
authors.initials: PS
authors.lastname: Mandathara
authors.forename: Varsha M
authors.initials: VM
authors.lastname: Rathi
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D015897:Comorbidity; D003231:Conjunctivitis / Q000453:epidemiology*; D003261:Contact Lenses / Q000706:statistics & numerical data*; D016510:Corneal Neovascularization / Q000453:epidemiology*; D005260:Female; D006801:Humans; D007194:India / Q000453:epidemiology; D007634:Keratitis / Q000453:epidemiology*; D008297:Male; D008875:Middle Aged; D015995:Prevalence; D016459:Prosthesis-Related Infections / Q000453:epidemiology*; D018570:Risk Assessment; D012307:Risk Factors; D055815:Young Adult