title: Multicenter Testing of a Risk Assessment Survey for Soft Contact Lens Wearers With Adverse Events: A Contact Lens Assessment in Youth Study.
abstract: OBJECTIVE
  To test the ability of responses to the Contact Lens Assessment in Youth (CLAY) Contact Lens Risk Survey (CLRS) to differentiate behaviors among participants with serious and significant (S&S) contact lens-related corneal inflammatory events, those with other events (non-S&S), and healthy controls matched for age, gender, and soft contact lens (SCL) wear frequency.
  
  
  METHODS
  The CLRS was self-administered electronically to SCL wearers presenting for acute clinical care at 11 clinical sites. Each participant completed the CLRS before their examination. The clinician, masked to CLRS responses, submitted a diagnosis for each participant that was used to classify the event as S&S or non-S&S. Multivariate logistic regression analyses were used to compare responses.
  
  
  RESULTS
  Comparison of responses from 96 participants with S&S, 68 with non-S&S, and 207 controls showed that patients with S&S were more likely (always or fairly often) to report overnight wear versus patients with non-S&S (adjusted odds ratio [aOR], 5.2; 95% confidence interval [CI], 1.4-18.7) and versus controls (aOR, 5.8; CI, 2.2-15.2). Patients with S&S were more likely to purchase SCLs on the internet versus non-S&S (aOR, 4.9; CI, 1.6-15.1) and versus controls (aOR, 2.8; CI, 1.4-5.9). The use of two-week replacement lenses compared with daily disposables was significantly higher among patients with S&S than those with non-S&S (aOR, 4.3; CI, 1.5-12.0). Patients with S&S were less likely to regularly discard leftover solution compared with controls (aOR, 2.5; CI, 1.1-5.6).
  
  
  CONCLUSIONS
  The CLRS is a clinical survey tool that can be used to identify risky behaviors and exposures directly associated with an increased risk of S&S events.
authors.affiliation: School of Optometry and Vision Science (L.S.), University of Waterloo, Waterloo, ON, Canada; College of Optometry (A.B.Z., G.L.M.), The Ohio State University, Columbus, OH; College of Optometry (K.R.), State University of New York, New York, NY; Southern California College of Optometry (D.Y.L.), Marshall B. Ketchum University, Fullerton, CA; College of Optometry (B.T.K.), Pacific University, Forest Grove, OR; Clinical Trial Consultant (R.L.C.), Atlanta, GA; and College of Optometry (H.W.), NOVA Southeastern University, Ft. Lauderdale, FL.
authors.forename: Luigina
authors.initials: L
authors.lastname: Sorbara
authors.forename: Aaron B
authors.initials: AB
authors.lastname: Zimmerman
authors.forename: G Lynn
authors.initials: GL
authors.lastname: Mitchell
authors.forename: Kathryn
authors.initials: K
authors.lastname: Richdale
authors.forename: Dawn Y
authors.initials: DY
authors.lastname: Lam
authors.forename: Beth T
authors.initials: BT
authors.lastname: Kinoshita
authors.forename: Robin L
authors.initials: RL
authors.lastname: Chalmers
authors.forename: Heidi
authors.initials: H
authors.lastname: Wagner
mesh_terms: D000293:Adolescent; D000328:Adult; D017677:Age Distribution; D000367:Age Factors; D003263:Contact Lenses, Hydrophilic / Q000009:adverse effects*; D005260:Female; D006801:Humans; D015994:Incidence; D007634:Keratitis / Q000453:epidemiology / Q000209:etiology*; D008297:Male; D009864:Ontario / Q000453:epidemiology; D011379:Prognosis; D012030:Refractive Errors / Q000628:therapy*; D015203:Reproducibility of Results; D018570:Risk Assessment / Q000379:methods*; D012307:Risk Factors; D017678:Sex Distribution; D012737:Sex Factors; D011795:Surveys and Questionnaires; D014481:United States / Q000453:epidemiology; D055815:Young Adult