2006-06-12 21:39:29 · 5 answers · asked by Anonymous in Health ➔ Other - Health
20/20 means you can see at 20 feet what other healthy people can see in 20 feet. So, 20/20 means normal. 20/60 means you can only read at 20 feet while others can read at 60 feet, meaning that you need to wear minus glasses.
2006-06-12 21:46:50 · answer #1 · answered by Dr N 2 · 0⤊ 0⤋
If you have 20/20 vision, it means that when you stand 20 feet away from the chart you can see what the "normal" human being can see.
In other words, if you have 20/20 vision your vision is "normal" -- a majority of people in the population can see what you see at 20 feet.
2006-06-13 04:58:32 · answer #2 · answered by B C 1 · 0⤊ 0⤋
It is a rating to say, u can see 20 out of 20, meaning 100% vision.
2006-06-13 04:48:17 · answer #3 · answered by medhruv 4 · 0⤊ 0⤋
Thta's 20 for each eye.
2006-06-13 04:44:21 · answer #4 · answered by Anonymous · 0⤊ 0⤋
It means that your eye sight is excellent.
2006-06-13 04:43:33 · answer #5 · answered by tracy v 2 · 0⤊ 0⤋