Background and Purpose: The prevalence of myopia is increasing globally at an alarming rate with significant risk of vision impairment. The purpose of this study was to determine the prevalence of myopia among medical students. Subjects: The subjects are the 171 regular third year medical students of Southwestern University PHIMA. Nationalities with less than ten population and irregular students, those who are not enrolled in all four subjects, are excluded from the study. Methods: The study...