20/20 vision is what we eye doctors call "normal" vision. Can you be better than normal? You bet.
20/20 is good, 20/15 is better, 20/10 is amazing, and 20/08 is really pretty rare, but possible.
Without getting too scientific, the top number represents the distance (in feet) at which you can see something. This is always set at 20. The bottom number represents the distance at which someone with "normal" vision can see it.
In other words, if you see something at 20 feet, and a "normal" person can see it at 50, then you have worse eyes than normal. On the other hand, if you can see something at 20 feet, but a "normal" person can see it at 15, then your eyes are better than normal.
2006-11-15 04:13:20
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answer #1
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answered by eyedoc_04 2
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With glasses I have 20/10 vision, without glasses I have 20/100 vision in one eye and 20/70 in the other.
2016-03-19 08:45:39
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answer #2
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answered by Anonymous
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Yep, I used to have 20/10, but I think it has gotten worse as I've aged.
This is what Wikipedia has to say about it:
In humans, the maximum acuity of a healthy, emmetropic eye (and even ametropic eyes with correctors) is approximately 20/16 to 20/12, so it is inaccurate to refer to 20/20 visual acuity as "perfect" vision. The 20/20 standard is the visual acuity needed to discriminate two points separated by 1 arc minute, that's all. The significance of the 20/20 standard can best be thought of as the lower limit of normal or as a screening cutoff. When used as a screening test subjects that reach this level need no further investigation, even though the average visual acuity of healthy eyes is 20/16 or 20/12.
2006-11-15 04:07:43
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answer #3
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answered by Jemima 3
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Yes there is better vision than 20-20. I have heard civilian doctors can only correct eye sight in surgery to 20-20; however, military doctors can correct eyesight beyond 20-20. But I haven't researched to find out if this is true.
2006-11-15 04:13:12
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answer #4
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answered by sarahalyse 3
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20/20 vision is the American equivalent of 6/6 vision in UK and 1.0 in the rest of Europe. That is 20 ft and 6m. It is basically a ratio of what a "standard" person should see compared to what a given person can see. The top number refers to the distance away from the chart ( fixed at 20ft or 6m if the standard system is being used).
So 6/6 vision means a person can see from 6m what a standard person should see at 6m. In Uk the Snellen chart (the vision charts with letters on each line) go down to such a size that if you can read the bottom line, you can see from 6m what a standard person would see from only 4m away, i.e. your visual acuity is 6/4, and better than 6/6 or 20/20.
2006-11-15 05:02:41
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answer #5
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answered by teary chocolate 3
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In a way 20-20 vision is what doctors consider perfect vision. There have been people who have differnt vision like 15-20, my mother has very bad eyes and has 20-400.So in answer to your question, No there is not any thing better then 20-20 vision unless you have x-ray vision
2006-11-15 04:18:36
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answer #6
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answered by Jo 1
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Yes 20-22 vision
2006-11-15 04:06:49
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answer #7
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answered by Anonymous
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YES. 20/20 vision is what is considered exceptable but it is far from perfect.
2006-11-15 04:05:08
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answer #8
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answered by Roy Munson 3
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"The maximum acuity of the human eye without visual aids (such as binoculars) is generally thought to be around 20/10 (6/3). Recent developments in optometry have resulted in corrective lenses conferring upon the wearer a vision of up to 20/10. Some birds, such as hawks, are believed to have an acuity of around 20/2, which is much better than human eyesight."
2006-11-15 04:07:05
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answer #9
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answered by Slick 1
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Yes, if you have 20/20 vision your vision is "normal" It's a US term.
2006-11-15 04:07:34
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answer #10
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answered by Barbara Doll to you 7
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