6 6 eye test distance Key Takeaways 6 6 on an eye test means you have normal visual acuity Eye tests are important for detecting and preventing eye problems Visual acuity is the sharpness of your vision Visual acuity is measured using a Snellen chart 6 6 means you can see at 6 meters what a person with normal vision can see at 6 meters
Most vision testing in the United States uses the Snellen chart which requires a test distance of 20 feet In other countries visual acuity is expressed using the metric system Because 20 feet is equivalent to 6 096 meters 20 20 vision is equal to 6 6 vision Test can be performed with or without glasses In order for the test to be performed correctly allow the following distance between subject and screen 7 feet from a 20 screen 5 feet from a 17 screen 3 feet from a 12 screen 2 feet from a 13 screen Clover left eye with your left hand ensure to avoid applying
6 6 eye test distance
6 6 eye test distance
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Traditional Snellen Eye Chart Precision Vision
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Quick Test For Vision Acuity For Better Stereoscopic 3d Viewing 3d
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In the most common visual acuity test an optometrist places an eye chart at a standard distance twenty feet or six metres depending on the customary unit of measure By Liz Segre reviewed by Gary Heiting OD During an eye test your optometrist will use a chart of letters eye chart to measure how well you see objects at least 6 metres away This is called distance visual acuity testing If you haven t had an eye test recently click here to find an optometrist near you
A Snellen Eye Chart for Visual Acuity Testing This chart features varying letter sizes with fewer at the top and increasing toward the bottom The standard distance for testing is 20 feet or 6 meters and a recommended luminance of 80 to 320 cd m 2 Visual acuity is recorded as chart distance numerator over the number of the lowest line read denominator If the patient reads the 6 6 line but gets 2 letters incorrect you would record this as 6 6 2
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Visual acuity is the ability of your eyes to distinguish between objects that you see when standing at a specific distance It is also called visual sharpness or clarity of vision Acuity is the first thing eye doctors assess when examining a patient because it gives a baseline of the person s eyesight The numbers obtained from a visual acuity examination are all based on the visual clarity of a normal person at a distance of 20 feet or 6 meters Suppose visual acuity is documented as 20 20 or 6 6
Position the patient sitting or standing six metres away from the 6 metre Snellen or tumbling E chart or 3 metres away from the 3 metre Snellen or E chart Testing and recording visual acuity Test the eyes one at a time usually starting with the right eye without any spectacles Your eye care specialist will perform a visual acuity test each time you visit them to track any changes in your vision A visual acuity test can help diagnose common conditions that affect your vision including Nearsightedness myopia Farsightedness Astigmatism Presbyopia Color blindness
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6 6 eye test distance - By Liz Segre reviewed by Gary Heiting OD During an eye test your optometrist will use a chart of letters eye chart to measure how well you see objects at least 6 metres away This is called distance visual acuity testing If you haven t had an eye test recently click here to find an optometrist near you