Here’s a pair of glasses from PixelOptics that replace bifocals, changing from distant vision to close-up with the flick of a switch. Sure, this prototype is rather odd-looking, but its developers say ...

If you need different pairs of glasses for seeing different things (say, reading vs. distance) or wear bifocals or progressive lenses, the future is looking bright: Someone has invented a pair of ...

Those of us who wear glasses have long been familiar with Transitions lenses, a type of lens that darkens in sunlight but is clear while indoors. The technology relies on a chemical phenomenon known ...

New protective eyewear will eliminate the need for warfighters to stop to change out colored lenses to accommodate differences in light levels. The Office of Naval Research's (ONR) TechSolutions ...