خضور محمد, يوسف حبيب, and درويش تيم. “The Effect of Prolonged Use of Face Mask on the Changes in Tear-Film Status and Ocular Surface Disease Index Score”. Tishreen University Journal -Medical Sciences Series 45, no. 3 (July 24, 2023): 409–417. Accessed May 13, 2024. https://journal.tishreen.edu.sy/index.php/hlthscnc/article/view/15212.