Visual Acuity Score: Tests, Charts & Scores Explained - Vision Center
2024年10月10日 · A visual acuity score results from a visual acuity test performed by an optometrist or ophthalmologist during an eye exam. Visual acuity scores are usually written as a fraction. These test results describe your ability to see an object 20 feet away compared to a person with normal vision.
20/20 Vision: What Is Visual Acuity, How It's Tested, and More - WebMD
2023年7月10日 · Visual acuity is the clarity of vision when measured at a distance of 20 feet. Learn more about what it means, how it's tested, and more.
Visual acuity - Wikipedia
Normal individuals have an acuity of 6/4 or better (depending on age and other factors). In the expression 6/x vision, the numerator (6) is the distance in metres between the subject and the chart and the denominator (x) the distance at which a person with 6/6 acuity would discern the same optotype.
Visual Acuity: Meaning, Tests & Scores Explained - MyVision.org
2022年3月1日 · Visual acuity is the ability of your eyes to see objects clearly, without any visual aids, from 20 feet away. Normal acuity is measured as 20/20 vision from a visual acuity test.
Visual Acuity - American Academy of Ophthalmology
2022年1月20日 · Visual acuity measures how sharp your vision is at a distance. It is usually tested by reading an eye chart. How is visual acuity tested? The Snellen eye chart, with its familiar rows of letters in decreasing sizes, is the most common visual acuity test.
20/20 Vision: What It Means, Tests & Corrective Methods - Cleveland Clinic
2024年10月8日 · 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.
Visual Acuity - AOA
20/20 vision is normal vision acuity (the clarity or sharpness of vision) measured at a distance of 20 feet. If you have 20/20 vision, you can see clearly at 20 feet what should normally be seen at a distance. If you have 20/100 vision, you must be as close as 20 feet to see what a person with normal vision can see at 100 feet.
What Does 20/20 Vision Mean? - American Academy of Ophthalmology
2022年1月28日 · 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.
What is 20/20 Vision? - All About Vision
2019年2月27日 · 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.
Visual Acuity Test Normal Range: What You Need to Know
2024年11月19日 · The visual acuity normal range is typically described as 20/20 vision in the U.S. and 6/6 in metric countries. This range signifies that you can clearly see objects at 20 feet that most people can also see at that distance.