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For optical, cosmetic, or therapeutic purposes, contact lenses (CLs) are temporary prostheses positioned on the eye. CLs do not only improve the quality of life by correcting, but also providing a better appearance and less activity restriction. Patients’ failure to comply with the hygienic practices prescribed in using CLs is often considered an important risk factor for eye complications and it is not often clarified to CLs consumers at the time of dispensation.  Aim  The objective of this study was to assess the knowledge and practices towards the use of CLs in a sample of the Saudi population in Riyadh.  Methods  A cross-sectional study was performed using an online questionnaire among adult residents in Riyadh, Saudi Arabia from April to May of 2020. The statistical analysis was performed using R v 3.6.2 (R Foundation for Statistical Computing, Vienna, Austria). Ordinal (Likert-scale) variables were summarized using mean ± standard deviation, or median and interquartile range (IQR) as needed.  Results  The majority of current users of CLs had no sight problem (P < 0.001). Using CLs was thought to be harmful in non-users (12.4%) versus CL users (2.93%) (P < 0.001). The main reason for using CLs in all groups was the emulation of others. Dryness was a well-known complication in current users (P < 0.05) and evening discomfort was a well-known one in previous users (P < 0.05). Social circle was the main source of information in 40% of users. High monthly income has a significant association with knowledge regarding the complications of CLs compared with low income (B = 0.94, P < 0.05). Education has a major effect on the users’ knowledge regarding the increase of refractive error and infection by CLs (P < 0.05).  Conclusions  Knowledge and practice were less than desired among CLs users. Many use CLs without prescription and solely for cosmetic purposes. More education is needed to lessen eye complications among CLs users.

Contact Lens Practices and Knowledge of Complications and its Association With Refractive Error in Saudi Arabia