Eye ????????????????

Question

what dose 20/100 visen mean

Answer 1

eye?

EYE?

EYE?!

EYE!!!!!!!!!!!!!!!

Answer 2

Look under Visual acuity expression

http://en.wikipedia.org/wiki/Visual_acui...

Answer 3

If your vision is 20/100, you see at 20 feet what a "normal" person sees at 100 feet.  You have to be about 80 feet closer to something than the average person to be able to see it as he/she does.

Answer 4

It means the smallest size line on the eye chart that you could see clearly from 20 ft away was the "100" size line.  The "100" size is a letter that forms a 5 degree angle at the eye when viewed from 100 feet.