Bifocal is a type of corrective lens. Bifocal lenses are divided into two sections, usually the top for seeing far away objects and the bottom for seeing nearby objects.
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Bifocal
My gran has some bifocal glasses.
science bifocal
Benjamin Franklin
Benjamin Franklin in America is usually regarded as the inventor of the Bifocal glasses .
Bifocal contacts lenses are a better option..:)
It means you are using a bifocal contact lens that has a bifocal power of about +1.25 to +1.50. A high add would have the bifocal power of about +2.50.
Bifocal
Bifocal lenses as a concept were not patented; there are dozens of patents related to bifocals, bifocal contacts, and processes to make bifocals.
The cast of The Bifocal Gaze - 2007 includes: Kunga Dorje as Popola Tashi Sherpa
Managerial tasks communicate values and build and build culture. Bifocal leaders manage by leading and lead by managing.