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Visual acuity

en.wikipedia.org/wiki/Visual_acuity

Visual acuity (VA) commonly refers to the clarity of vision. Visual acuity is dependent on optical .... Emmetropic subjects with 6/6 vision or "better" (20/15, 20 /10, etc.) ... Measurement...

Eye Test - The Eye Chart and 20/20 Vision Explained

www.allaboutvision.com/eye-test/

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 ...

What Does 20/20 Mean? - EyeCare Associates of East Texas

www.eyecaretyler.com/resources/how-the-eye-works/what-does-2020-mean/

"Normal" vision is 20/20. This means that the test subject sees the same line of letters at 20 feet that a normal person sees at 20 feet. 20/40 vision means that the  ...

Visual Acuity: What is 20/20 Vision?

www.aoa.org/patients-and-public/eye-and-vision-problems/glossary-of-eye-and-vision-conditions/visual-acuity

20/20 vision is a term used to express normal visual acuity (the clarity or sharpness of vision) measured at a distance of 20 feet. If you have 20/20 vision, you can ...

What does it mean to have 20/15 vision? - Quora

www.quora.com/What-does-it-mean-to-have-20-15-vision

20/20 is average vision the chart was developed by Snellen. Its the size of a letter that was ... So 20/20 is just where someone decided to draw the line as "normal" or good enough. 20/15 means you can see at 20 feet what a person with 20/20 ...

20/20 Vision. 20/10 Vision. 20/40 Vision. What do all these numbers ...

www.commonwealtheyes.com/2020-vision-2010-vision-2040-vision-what-do-all-these-numbers-actually-mean/

20/20 vision is referred to as the standard, or how a “normal” person sees. This means, that when you stand 20 feet away from an eye chart, you see what the ...

What is 20/20 Vision? | Newport Avenue Optometry

www.newportavenueoptometry.com/blog/what-2020-vision

By experimentation, Snellen determined the smallest letters a person with " normal" vision could consistently identify correctly. This became the 20/20 line on the ...

Free Eye Chart - Download, Print, Test | Vision Source

visionsource.com/patients/free-eye-chart-download/

Searching for a free eye chart to test your vision at home? Here you'll ... A 3 to 4- year-old should be able to read the 20/40 line, and a 5-year-old the 20/30 line.

What does " 20\ 20" Mean? - The Eye Care Institute

eyecareinstitute.com/email/7-16-08.htm

As a general guideline, if you have 20/20 vision, this means you can see at 20 feet what normal people see at 20 feet. If you have 20/80 vision, this means that ...

How the 20/20 Vision Scale Works - Gizmodo

gizmodo.com/how-the-20-20-vision-scale-works-1492129290

Dec 31, 2013 ... If you haven't, you have probably heard other people saying they have "20/20 vision" or even the phrase "hindsight is 20/20." The vision scale ...

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20/20 Vision: Is It Perfect Eyesight? - AllAboutVision.com

www.allaboutvision.com

If you have an eye exam and are told you have 20/20 vision, does this mean you ... Visual acuity is a static measurement, meaning you are sitting still during the ...

Low Vision and Legal Blindness Terms and Descriptions ...

www.visionaware.org

A visual acuity measurement of 20/70 means that a person with 20/70 vision who is 20 feet from an eye chart sees what a person with unimpaired (or 20/20) ...

How the 20/20 Vision Scale Works - Today I Found Out

www.todayifoundout.com

Dec 31, 2013 ... If you haven't, you have probably heard other people saying they have “20/20 vision” or even the phrase “hindsight is 20/20.” The vision scale ...