First sunglasses was made by Chinese with flat smokey quartz to cut glare.
Eyeglasses made with quartz lenses set into bone leather or metal and only for magnification.
Venetians made convex lens for far-sightedness
German invents concave lens to correct near-sightedness
London optician Edward Scarlett creates rigid templets that rests atop your ears.
American inventor Benjamin Franklin invents the bifocal lens.
Trifocal lens introduced by John Hawkins.
Essilor Int'l of France creates the first progressive multifocal lens.