Bif: “Boy, do I feel dizzy!” Calli: “You been drinkin’ again?” Bif: “No.” Calli: “Get in an accident?”
Bif: “No.” Calli: “ Are ya sick?” Bif: “No, I jus got my new glasses.”
Have you heard of the new digital lenses that are available? For the first time in 50-60 years the way lenses are ground to make the prescription is different.
The power of a lens is due to three things: one, front lens curvature, two, lens density and three, back lens curvature.
Originally the main curvature was ground on the front lens surface. Later it was found that putting the mai...