Based on: Refraction, and How to Refract. Including Sections on Optics, Retinoscopy, the Fitting of Spectacles and Eye Glasses, etc. By James Thorington, A.M., M.D., Professor of Diseases of the Eye ...

Reading your prescription starts by identifying which values belong to which eye. “OD” refers to your right eye and “OS” to ...

Please provide your email address to receive an email when new articles are posted on . In part two of Healio’s Lost Art of Refraction miniseries, Cynthia Matossian, MD, FACS, and Arun C. Gulani, MD, ...