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   What is 20/20 vision?

   • The term “20/20 vision” refers to a standard measurement of visual acuity. Technically, it represents the clarity or sharpness of a particular letter that subtends an angle of 5 arc minutes.

   Understanding 20/20 Vision: Comprehensive Guide to Visual Acuity

   www.tlcvision.com/blog/understanding-20-20-vision/

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   What is a 20/70 visual acuity?

   • (Scheiman, Scheiman, and Whittaker) Visual acuity is a number that indicates the sharpness or clarity of vision. 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) vision can see from 70 feet away.

   Low Vision and Legal Blindness Terms and Descriptions

   www.afb.org/blindness-and-low-vision/eye-conditions/low-vision-and-legal-blindness-terms-and-descriptions

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   What does low vision mean?

   • Low vision is a condition caused by eye disease, in which visual acuity is 20/70 or poorer in the better-seeing eye and cannot be corrected or improved with regular eyeglasses. (Scheiman, Scheiman, and Whittaker) Visual acuity is a number that indicates the sharpness or clarity of vision.

   Low Vision and Legal Blindness Terms and Descriptions

   www.afb.org/blindness-and-low-vision/eye-conditions/low-vision-and-legal-blindness-terms-and-descriptions

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   What is vision loss?

   • Vision loss represents a broad spectrum, from minor visual impairment to total blindness, and within this spectrum exist many misconceptions. For instance, contrary to popular belief, people considered to be legally blind can see more than complete darkness.

   Living Well with Blindness, Low Vision, and Vision Impairment

   www.ncoa.org/article/living-well-with-blindness-low-vision-and-vision-impairment

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2. www.afb.org › blindness-and-low-vision › eyeLow Vision and Legal Blindness Terms and Descriptions

   www.afb.org › blindness-and-low-vision › eye

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   Here is one definition of low vision, related to visual acuity: Low vision is a condition caused by eye disease, in which visual acuity is 20/70 or poorer in the better-seeing eye and cannot be corrected or improved with regular eyeglasses. (Scheiman, Scheiman, and Whittaker) Visual Acuity and Low Vision

3. Videos

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     What Is 20/20 Vision? Visual Acuity Explained | Dr. Jeff Goldberg & Dr. Andrew Huberman

     Jan 2, 2024

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     What does 20/20 Vision Mean?

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     What is 20/20 Vision?

     Mar 25, 2015

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4. www.tlcvision.com › blog › understanding-20-20-visionUnderstanding 20/20 Vision: Comprehensive Guide to Visual Acuity

   www.tlcvision.com › blog › understanding-20-20-vision

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   Apr 3, 2024 · The term “20/20 vision” refers to a standard measurement of visual acuity. Technically, it represents the clarity or sharpness of a particular letter that subtends an angle of 5 arc minutes.

5. www.ncoa.org › article › living-well-with-blindnessBlindness, Low Vision, and Vision Impairment: A Guide for ...

   www.ncoa.org › article › living-well-with-blindness

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   Someone with vision that cannot be corrected to better than 20/200 in the best eye or who has 20 degrees or less of visual field remaining is considered legally blind. Learn more about categories of vision loss as defined by the World Health Organization. 2

6. visionsource.com › blog › what-does-20-20-visionWhat Does 20/20 Vision Really Mean? - VisionSource

   visionsource.com › blog › what-does-20-20-vision

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   Aug 23, 2016 · Blog. What Does 20/20 Vision Really Mean? They say hindsight is 20/20. Even though we can reflect on past experiences through a seemingly perfect lens, is 20/20 as good as it gets when it comes to our vision? The Difference Between Visual Acuity And Our Vision.

7. www.news-medical.net › health › What-is-visualWhat is visual impairment? - News-Medical.net

   www.news-medical.net › health › What-is-visual

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   Jun 7, 2023 · The CDC and the World Health Organization suggest that low visual acuity means vision between 20/70 and 20/400 with the best possible correction, or a visual field of 20 degrees or less....

   • Causes of Vision Impairment

     Vision may be impaired due to multiple reasons. These could be due to eye damage, failure of the brain to receive and read the visual cues sent by...
   • Who Does Visual Impairment Affect?

     Although impairment of vision can occur at any point in life, it is more common among the elderly. Sometimes visual impairment may be inherited. It...
   • How Many People Are Visually Impaired?

     Some estimates suggest the approximately 10 million people in the United States are blind or visually impaired. Some sources suggest that one milli...

8. www.aao.org › consejos › what-does-20-20-vision-meanWhat Does 20/20 Vision Mean? - American Academy of Ophthalmology

   www.aao.org › consejos › what-does-20-20-vision-mean

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   Jan 28, 2022 · 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.

9. www.verywellhealth.com › blindness-6502698Blindness: Symptoms, Causes, and Treatment - Verywell Health

   www.verywellhealth.com › blindness-6502698

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   Jan 24, 2023 · In most states, legal blindness is vision that is worse than 20/200, even when using glasses or contact lenses. The definition of legal blindness helps determine if a person is eligible for disability benefits. The use of 20/200 refers to how well you can see an object that is 20 feet away.