How to Read Eye Prescription for Glasses: Understand OD vs. OS and What the Numbers Mean
To read your eye prescription, start with the symbols and numbers. A minus sign (−) shows nearsightedness, while a plus sign (+) indicates farsightedness. OD represents your right eye and OS is for your left. Key attributes include Sphere (S), Cylinder (C), and Axis. Check the table format for lens strength and corrections. The numbers … Read more