A new option for bifocal and trifocal wearers is now available for ... through the Spectacle Request Transmission System. These glasses are at no cost to eligible DoD retirees.

As a result, people require multiple sets of eyeglasses for different conditions. Bifocal or trifocal or progressive lenses are really just multiple sets of lenses squashed into a smaller form ...

A progressive lens design is like a bi- or tri-focal lens in that it corrects more than one ... You may want to consider Transitions photochromic lenses for your primary pair of glasses. They adjust ...