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Koichi Ono, Akira Murakami; A Web-based Survey of Contact Lens-related Adverse Events: Are Decorative Contact Lenses Dangerous?. Invest. Ophthalmol. Vis. Sci. 2020;61(7):1501.
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© ARVO (1962-2015); The Authors (2016-present)
To investigate the frequency of contact lens (CL)-related adverse events for clear and decorative CLs among Japanese females aged 16 -49, and to identify the risk behaviors.
A web-based, cross-sectional, observational survey of CL-related adverse events was performed in November, 2019. Participants completed a standardized anonymous questionnaire. After cleaning the data, the frequency and 95% confidence interval (CI) were calculated for CL-related complications between clear and decorative CLs. In this study, the following factors were considered as confounders: age, disposal and replacement schedule, total experience (years), daily wearing time (hours), CL purchase source (market, Internet, vs. eye care providers), frequency of eye examination, experience of stacking CLs, experience of sharing CLs, experience of over wearing CLs, experience of sleeping in CLs, compliance with recommended care, compliance with the lens disposal and replacement schedule. Simple and multivariate logistic regression analyses were performed to calculate crude and adjusted odds ratios (ORs). IRB approval was obtained from Juntendo University, School of Medicine.
A total of 3,803 Japanese females aged 16-49 were included in the study. The average age (+/- standard deviation) of studied population was 28.7 +/-7.7. The overall frequency of CL-related adverse events was 34.5% (95%CI: 33.0 to 36.0%). The frequency of CL-related problems were 33.4% (95%CI: 31.3 to 35.4%) and 35.7% (95%CI: 33.5 to 37.9%) for clear and decorative CLs, respectively. In a multivariate model, there was no statistically significant difference of ORs between clear and decorative CLs. The following behavioral factors were significantly associated with any adverse event: overwearing CLs, sleeping in CLs, and poor compliance with the lens disposal and replacement schedule.
No statistically significant difference of CL-related adverse events was observed between clear and decorative CLs. Most of the risk behaviors are preventable. Providing accurate and timely information to improve their behaviors could be most beneficial for all CL wearers.
This is a 2020 ARVO Annual Meeting abstract.
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