20/20 vision is “normal” vision. It’s a measure of the clarity or sharpness of your eyesight when you’re 20 feet away from an object. Eye care specialists call this visual acuity. Having 20/20 vision means your vision is typical — it doesn’t mean your vision is perfect.

Feb 25, 2025 · Eyeglasses or contacts help you have 20/20 vision. But what does that really mean? The phrase 20/20 vision means normal vision, explains J. Kevin McKinney, MD. “A person with 20/20 vision can see what an average individual can see on an eye chart when they are standing 20 feet away,” says Dr. McKinney.

Nov 4, 2024 · 20/20 vision refers to the ability to see clearly at a distance of 20 feet, which is considered normal vision. 20/20 vision is measured using a Snellen eye chart, where the smallest line of letters that can be read accurately determines the visual acuity.

Jul 10, 2023 · Acuity of vision is a term used to describe the clearness or sharpness of your vision when measured at a distance of 20 feet. Visual acuity is the most common clinical measurement of how...

Feb 26, 2019 · 20/20 vision is a measurement of visual acuity — the sharpness of your eyesight. Acuity measurements usually come in the form of fractions that start with the number “20,” followed by a slash and a second number. “20/20” may be the most recognizable fraction, but there are many others too.

At its core, 20/20 vision is a way to measure your visual clarity or sharpness at a distance of 20 feet. If you have 20/20 vision, it means you can see clearly at 20 feet what a person with normal vision should be able to see at the same distance.

Jan 28, 2020 · The simple answer is that eyeglasses, contact lenses or laser eye surgery can correct your vision to 20/20. But what is 20/20 vision anyway?

Aug 10, 2016 · 20/20 vision (or really, 20/20 visual acuity) is considered “normal” vision, meaning you can read at 20 feet a letter that most human beings should be able to read at 20 feet. Eye charts can be configured in various ways, but generally, if during an eye test you can read the big E at the top but none of the letters lower than that, your ...

Sep 25, 2023 · As a common phrase, it often gets thrown around in discussions about vision and sight, yet its actual meaning remains elusive to many. In this article, we delve into the concept of 20/20 vision, providing a comprehensive explanation from an ophthalmological perspective.

The purpose of the 20-20-20 rule is to remind you to take vision breaks — to look up from the computer screen or your book on a regular basis and give your eyes a little rest. According to the American Optometric Association, to prevent digital eye strain you should: Every 20 minutes; Take a 20 second break