Adjective:

द्विनाभित,

bifocal's Usage Examples:

You can get bifocal eyeglasses for as low as "25.00 for the whole package.

bifocal glasses can contribute to balance problems for some people.

Since bifocal lenses often cost a bit more than single vision ones, bifocals that stick onto regular lenses are a good alternative for those who can't afford to spring for the pricier pair of lenses.

There's no line that immediately jumps from distance vision to near vision, and if you aren't used to traditional bifocal styles, you may find it easier to adapt to the no line bifocal reading glasses than you would to the ones with lines.

Cibavision provides daily disposable contacts, weekly disposable contacts, monthly disposable contacts, contacts designed for astigmatism, cosmetic contacts, bifocal contact lenses, and specialty lenses.

Since multifocal lenses are designed for those with presbyopia, a condition common with aging that causes the inability to focus on objects close by, they are a popular alternative to bifocal glasses.

The computer glasses found at this site also have the bifocal setup with the reading prescription in the bottom of the lenses and the intermediate prescription derived from the stronger one located at the top.

The only problem with bifocal lenses was that objects neither far or near were still difficult to focus on, and bifocal eyeglasses also had an unsightly line halfway down the lens that was easy for people to see.

bifocal lenses are a suitable choice for your needs.

As a rule every submarine has at least two periscopes, one unifocal with a small upper tube and the other bifocal and sky-searching with a larger upper tube.

Synonyms:

central,

Antonyms:

unimportant, peripheral,