Two focal lengths in one lens.
Bifocal
No-line bifocal is a generic name for a progressive. Opticians use the "no-line" bifocal term because sometimes patients are hear "progressive" and think "transitions" which are lenses that turn to sunglasses when exposed to UV light.
My gran has some bifocal glasses.
science bifocal
Benjamin Franklin
biennial bilingual biceps binoculars bifocal bicycle biannual
Bifocal contacts lenses are a better option..:)
Benjamin Franklin in America is usually regarded as the inventor of the Bifocal glasses .
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.
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
Managerial tasks communicate values and build and build culture. Bifocal leaders manage by leading and lead by managing.