September 19, 2013 | Vol. 117 -- No. 22

New digital lenses change the way we see

Bif: “Boy, do I feel dizzy!” Calli: “You been drinkin’ again?” Bif: “No.” Calli: “Get in an accident?”

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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...

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