Bi-Focal, Flat Top 28 Crystal Vision Polycarbonate

Essilor's Crystal Vision Polycarbonate lenses provide a half-moon shaped reading area for bifocal vision, suitable for prescriptions up to +3.00 sphere.

• The description claims that Crystal Vision lenses are made by one of the world's largest lens companies.
• The description claims that all Crystal Vision lenses are made in the U.S., to exacting specifications, in an Essilor laboratory.