
Bifocals - Wikipedia
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 …
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 · 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 …
Understanding bifocal contact lenses—how do they work?
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.
What Are Bifocals and What Are They Used For? | Glasses.com®
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 …
What Is Bifocal Vision and How Do Bifocal Lenses Work?
Bifocal vision refers to corrective eyewear designed to provide clear sight at two distinct distances: far away and up close.
Bifocals and Trifocals - A Complete Guide - All About Vision
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 …
Everything You Need To Know About Bifocals - Zenni Optical
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 …
The Complete Guide to Bifocal Lenses
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 …
BIFOCAL Definition & Meaning - Merriam-Webster
Dec 5, 2016 · The meaning of BIFOCAL is having two focal lengths. How to use bifocal in a sentence.