bifocals's Usage Examples:

Trifocal lenses are made in similar styles to bifocals, but with an additional segment for intermediate vision above the reading.

bifocals or progressives) are comparable to spectacles with bifocals or progressive lenses because they have multiple.

Glasses used to correct presbyopia may be simple reading glasses, bifocals, trifocals, or progressive lens.

Current bifocals and progressive lenses are static, in that the user has to change their.

via microscopes, telescopes, bifocals etc.

viewpoint of the heroine, and opens with a comment on Johnson Johnson's bifocals.

distinct focal planes that are substantially separated, in the manner of bifocals to switch their vision from up-close to distance, for easy and efficient.

Adjustable-focus eyeglasses might be used to replace bifocals or trifocals, or might be used to produce cheaper single-vision glasses.

granted patents on two forms of bifocals which become commercially standardized as the "cemented" and "perfection" bifocals.

A halo of white hair and tinted bifocals frame a round face and otherwise shiny pate.

Synonyms:

specs; glasses; eyeglasses; spectacles;