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Bifocal Lenses: What They Are, Who Needs Them, and More
Sep 24, 2024 · Bifocal lenses offer two prescriptions in one pair of eyeglasses. The top half corrects distance vision, and the bottom half corrects near vision. The two sections are divided by a distinct …
What Are Bifocals? How Do They Work? - Warby Parker
Sep 10, 2024 · Using the lenses from two different pairs of glasses, Franklin split each lens in half and combined them to create “double spectacles,” or what are now called bifocals.