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6/6 vision is a visual acuity score from an eye chart test done at 6 meters. It is the metric system version of 20/20 vision. It means you can see at 6 meters what a standard eye sees at 6 meters. Like 20/20, it measures chart sharpness, not overall eye health.
read more about 6/6 Vision ...The first number is the testing distance, which is 6 meters. The second number is the distance where a standard eye could read the same chart line. If you have 6/12, it means you must be at 6 meters to see what a standard eye sees at 12 meters. Smaller second numbers like 6/5 are better than 6/6.
6 meters is close to 20 feet, so the two systems are equivalent in meaning. A 6/6 result is the same idea as 20/20. Many charts and countries use the 6 meter format as the default. Your score can still vary based on lighting, dryness, and test setup.
It does not measure eye pressure, retina health, or peripheral vision. It also does not measure night driving comfort or glare sensitivity. You can have 6/6 and still have dry eye symptoms or early cataract changes. A full exam checks much more than the chart.
Book an exam if vision feels worse than your chart score suggests. Get checked quickly for new distortion, a dark spot in central vision, or sudden blur. Call right away for flashes, a burst of floaters, or a curtain-like shadow. Those symptoms can signal a retinal emergency.
Yes. It is the same concept using meters instead of feet. 6/6 and 20/20 both represent standard chart acuity.
Yes. Some people test at 6/5 or even 6/4, depending on the chart. It means they can read smaller letters at the same distance.
Blur can come from dry eye, glare, focusing fatigue, or poor contrast sensitivity. The chart uses high-contrast letters that don't reflect every real-world situation. An exam can explain the mismatch.
Not always. You might still need glasses for reading, astigmatism comfort, or night glare, even if the chart looks fine. Your prescription depends on more than one test.
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What Does 6/6 or 6/12 Vision Mean? HealthXchange. https://www.healthxchange.sg/how-to-prevent/childhood-myopia/how-to-check-eyesight-at-home. Date Accessed March 16, 2026.
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