- bifocal glasses
- glasses with bifocal lenses.
Medical dictionary. 2011.
bifocal glasses
Look at other dictionaries:
bifocal lens — a lens with two principal focal lengths: the upper part of the lens gives a sharp image of distant objects and the lower part gives a sharp image of near objects, as when reading. Examples are bifocal spectacles, bifocal contact lenses, and… … Medical dictionary
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bifocal — ► ADJECTIVE ▪ denoting a lens having two parts each with a different focal length, one for distant and one for near vision. ► NOUN (bifocals) ▪ a pair of glasses with bifocal lenses … English terms dictionary
bifocal — adjective denoting a lens having two parts each with a different focal length, one for distant and one for near vision. noun (bifocals) a pair of glasses with bifocal lenses … English new terms dictionary
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