bifocal lens


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Related to bifocal lens: Progressive lens

bifocal lens

[bī′fō·kəl ′lenz]
(optics)
A lens with two parts having different focal lengths.
In particular, an eyeglass lens having one part that corrects for distant vision and one part for near vision.
References in periodicals archive ?
CVI also continues clinical trials on a high performance monthly planned replacement bifocal lens.
Depending on the lens power in the fop segment, the Double-D can be considered a trifocal or a bifocal lens.
Rigid multifocal or bifocal lens wearers often experience a momentary blur after blinking and also have to settle for less-than-optimal comfort.