|Title||CONTACT LENS CARE BEHAVIORS ASSOCIATED WITH INFLAMMATORY AND INFECTIOUS CORNEAL CONDITIONS|
|Author, Co-Author||Aaron Zimmerman, Andrew Emch, Julia Geldis, Gregory Nixon, G. Lynn Mitchell|
Room 225 A-B
|Abstract|| PURPOSE: To evaluate contact lens (CL) care risk factors associated with corneal inflammatory or infectious conditions among undergraduate and graduate students.
METHODS: A survey was administered to CL wearing patients at a university clinic. Questions addressed age, education level, CL and case replacement, type of care solution and utilization, overnight wear, and lens brand. Surveys were given to patients presenting with new onset CL related red eyes and to CL wearing patients without complications entering for an annual exam to serve as controls. Surveys were distributed as time permitted, and data collection occurred during normal clinic hours.
RESULTS: Ninety-five subjects completed the survey with 36 subjects having CL related red eyes. Of the 36 red eye subjects, 27 were undergrad students (univariate OR 4.7, 95% CI 1.9, 11.8). Age of the current CL case was 7.1(+/-8.0) months in the red eye group and 6.9(+/-8.5) for the non-red eye group (p=0.92). Of those with a CL related red eye, 71% did not use fresh solution daily (ie topped off)(univariate OR 6.3, 95% CI 2.2, 17.5). Other risk factors were overnight wear (OR 2.6, 95% CI 1.1, 6.3) and the use of any type of Polyquad /Aldox combined solution (OR 6.4, 95% CI 1.1, 36.8). Comparing undergrad students alone, age appeared to be the only significant risk factor (p=0.021) with topping off showing marginal significance(aOR 3.9, 95%CI 0.9, 16.5).
CONCLUSIONS: Among 18 to 36 year old CL wearing patients, age and lens care solution are predictors of a red eye event. The risk of an event decreases with age (12% risk reduction per year). In this particular survey sample, patients using Polyquad based care solutions are more than 6 times more likely to experience a red eye event compared to patients using peroxide solutions (aOR=6.4, 95% CI of 1.1 to 36.8). Polyquad solution users are nearly 5 times more likely to experience an event when compared to PHMB solution users (aOR=4.9, 95% CI of 1.6 to 15.7). There was no difference in the risk when comparing PHMB and peroxide users (p=0.78).
ADDITIONAL COMMENTS: This was an unfunded study.
|Affiliation of Co-Authors||The Ohio State University, College of Optometry, The Ohio State University, College of Optometry, The Ohio State University, College of Optometry, The Ohio State University, College of Optometry|