Bifocals are eyeglasses with two distinct optical powers correcting vision at both long and short distances. Bifocals are commonly prescribed to people with presbyopia who also require a correction …

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 …

Sep 10, 2024 · The top part of a bifocal lens corrects distance vision, while a smaller portion at the bottom of the lens corrects near vision. When looking closely at bifocal lenses, you can see a line …

Jan 17, 2026 · Understand how bifocal lenses work to correct dual vision. Explore lens structure, compare designs to alternatives, and get practical adjustment advice.

Aug 14, 2025 · A bifocal lens has two distinct optical segments: the upper portion corrects distance vision, while the lower segment assists with close-up tasks like reading or sewing.

Sep 8, 2025 · Learn about bifocal contact lenses, including how they work, their designs, who they’re suited for, and the differences between bifocal and multifocal options.

Feb 26, 2019 · As a bifocal wearer drops his eyes downward to read, the eyes naturally seek out the near-vision portion of the lens. Try these interactive Rx forms to learn what the measurements mean …

May 31, 2023 · When you’re young, the natural lens inside your eyes is flexible. It can easily shift focus so you can see clearly up close and far away. As you get older, this lens becomes thicker and starts …

Feb 4, 2025 · What are bifocal lenses? Bifocal lenses combine two optical powers in a single lens: one for distance vision and another most typically used for near vision. Manufacturers refer to this visible …

Oct 23, 2024 · Bifocal glasses are specially crafted eyewear that combines two different prescriptions into a single lens. The upper portion of the lens is usually optimized for distance vision, while the …