Classesusa.com

Manually enter the values (sphere, cylinder, axis, and pupillary distance ) yourself. 2. Finding the Right Fit and Style

Before you shop, you need a valid prescription from an optometrist. If you already have glasses but lost your paper prescription, GlassesUSA.com provides three ways to get it:

A free, FDA-listed app that extracts your current optical details in about 10 minutes using your smartphone and a computer.

Upload a photo or use your webcam to see how frames look on your face in real-time.