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

Benjamin Franklin is credited with inventing the first bifocal eyeglasses in 1785 for his own use as he reportedly detested readers. In advanced countries, reading glasses and bifocal or trifocal ...

Smart glasses have been available in various forms ... artists and scholars in the 13th Century, to the invention of bifocal lenses by American statesman and inventor Benjamin Franklin in 1784 ...

If folks previously needed distance vision correction, progressive lenses allow them to have both prescriptions without needing multiple glasses. Unlike bifocal lenses, progressive lenses have no ...