Quick Answer The term “Add” in eyeglass prescriptions refers to the additional lens power needed for near…
bifocal lenses
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Bifocal lenses are eyeglass lenses that incorporate two distinct optical powers to help people see clearly at different distances. Typically, the upper part of the lens is designed for distance vision, while the lower section is tailored for near vision, making them ideal for individuals with presbyopia or age-related difficulty focusing on close objects. Bifocal lenses provide a convenient, all-in-one solution for everyday visual needs without the need to switch between multiple pairs of glasses.