CONTEXT: Diabetes related retinopathy DR , the most common complication of diabetes mellitus DM , is a severe and preventable cause of visual loss and blindness that has been reported to be the fourth leading cause of blindness among four million cases globally. ...METHODS AND MATERIALS: This cross sectional descriptive study was conducted at a College of Medicine in Saudi Arabia, in November 2018, and comprised 153 fourth and fifth year medical students of both sexes. ...