Prevalence, habits and outcomes of using contact lenses among medical students.

Objectives: To determine the prevalence, reasons of use, reported hygienic practices, and complications related to CLs' usage, and to assess awareness of medical students about CLs' hygienic behaviours, King Abdulaziz University (KAU), Jeddah, Saudi Arabia.

Methods: A cross-sectional design was done. A multi-stage stratified random sampling was utilized to select 536 medical students.