trifocals
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trifocals — ☆ trifocals [trī′fō΄kəlz ] pl.n. eyeglasses with trifocal lenses * * * … Universalium
trifocals — ☆ trifocals [trī′fō΄kəlz ] pl.n. eyeglasses with trifocal lenses … English World dictionary
trifocals — tri·fo·cals (triґfo kəlz) trifocal glasses … Medical dictionary
trifocals — n. eyeglasses with trifocal lenses, eyeglasses having lenses with three focal lengths … English contemporary dictionary
trifocals — a pair of trifocal glasses. → trifocal … English new terms dictionary
trifocals — trifoˈcals plural noun Spectacles with such lenses • • • Main Entry: ↑trifocal … Useful english dictionary
Trifocal — Trifocals are eyeglasses where the lenses have 3 regions to correct for distance, intermediate (arm s length), and near vision. They are mostly used by people with advanced presbyopia who have been prescribed 2 diopters or more of reading… … Wikipedia
Corrective lens — A bifocal corrective eyeglass lens A pair of contact le … Wikipedia
Bifocals — are eyeglasses whose corrective lenses each contain regions with two distinct optical powers. Bifocals are most commonly prescribed to people with presbyopia who also require a correction for myopia, hypermetropia, and/or astigmatism.… … Wikipedia
Optician — An optician uses a lensometer to check eye glasses. An optician is a person who is trained to fill prescriptions for eye correction in the field of medicine … Wikipedia
