Prabhu, Avinash, Alstreed Pinto, Juthika Thalukdar, and Ramesh Ve. “Inter-Rater Reliability for Visual Acuity, Refractive Error, Corneal Reflex, and Inter-Pupillary Distance Among Two Masked Optometrists in School Children Population”. Asian Journal of Ophthalmology 16, no. 3 (January 17, 2019): 160-167. Accessed August 7, 2020. https://asianjo.com/index.php/AsianJO/article/view/423.