trifocals

trifocals
trifocals [trī′fō΄kəlz ]
pl.n.
eyeglasses with trifocal lenses

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Universalium. 2010.

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Look at other dictionaries:

  • trifocals — ☆ trifocals [trī′fō΄kəlz ] pl.n. eyeglasses with trifocal lenses …   English World dictionary

  • trifocals — noun Spectacles with corrective lenses that have three different powers per eye. See Also: bifocals, trifocal …   Wiktionary

  • 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

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