Prescription Guide

Your prescription may include a SPH, CYL, Axis and ADD:

ODRight eye parameters
OSLeft eye parameters
SPHSphere indicates the amount of lens power prescribed for nearsightedness or farsightedness
CYL & AXISA Cylinder (CYL) and Axis is required to correct Astigmatism. Both parameters will be her
ADDThis provides magnifying power for reading, progressive and bifocal lenses

In addition to the general parameters, a contact lens prescription will include a Base Curve (B.C.) and a Diameter (DIA).

If you have any question about contact lens prescription contact us at