How To Buy Reading Glasses From Prescription | EXTENDED |

Use this formula for each eye separately: .

If SPH is -2.00 and ADD is +2.25 , your reading power is +0.25 . how to buy reading glasses from prescription

If your prescription has Cylinder (CYL) and Axis numbers, copy them exactly; they do not change for reading glasses. 2. Adjust Your Pupillary Distance (PD) PD is the distance between your pupils in millimeters. Use this formula for each eye separately:

If SPH is +1.00 and ADD is +1.75 , your reading power is +2.75 . copy them exactly