Bifocal lenses means to have two prescriptions in the same lens. Bifocal lenses work well for presbyopia. Multifocal lenses have several different focusing powers in each lens, to accommodate different vision needs .
19 нояб. 2021 г. · Unlike bifocals or trifocals, progressive multifocal lenses do not have distinct lines or segments and have the advantage of offering clear ... |
The term multifocal lenses can refer to any lenses with multiple powers including bifocals, trifocals or progressive lenses. Non-bifocal multifocal lenses have ... |
26 июн. 2018 г. · Bifocal lenses have two prescriptions in the same lens. Multifocal lenses are similar to progressive eyeglasses where there are several focal ... |
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