| bifocal lens |
Vision correction lens that comprises two parts: the upper part for distance vision and the lower part for near-vision tasks such as reading. The distance vision correction can have no correction at all. The segment for near-vision correction can be a half-moon shape, round, rectangular, or the bottom half of the lens. See Prescription Eyewear in Eye Care Encyclopedia.
출처: www.visionrx.com/library/dictionary/eye_dictionary...
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| bifocal |
Having one segment for near vision and one segment for far vision.
출처: newmanblackstock.com/glossary.html
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| bifocal g. |
glasses with bifocal lenses.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| bifocal l. |
one having two segments with different refractive powers, ordinarily with the upper for distant and the lower for near vision; used in bifocal glasses.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| bifocal contact lens |
A contact lens that contains two corrections in the same lens.
출처:
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