Don't you mean 20/15? "20" is the standard of measurement meaning how far away you can see something compared to "15", which is what an average person would need to stand at to see.
I think I read something that said that having 15/15 vision means that if something that was 20 feet away, I could see it as ifI was stand 15 feet away from it. But im not sure.
I've never heard of something like 15/20, and it wouldn't make any sense since it doesn't really work in the scaling. It would be like saying you have to stand 15 feet away to see something an average person could see 20 feet away, which is basically the same as 20/25.
[QUOTE="pugsy44"][QUOTE="jetpower3"]Don't you mean 20/15? jetpower3
I don't think so...
I've never heard of something like 15/20, and it wouldn't make any sense since it doesn't really work in the scaling. It would be like saying you have to stand 15 feet away to see something an average person could see 20 feet away, which is basically the same as 20/25.
[QUOTE="pugsy44"][QUOTE="jetpower3"]Don't you mean 20/15? jetpower3
I don't think so...
I've never heard of something like 15/20, and it wouldn't make any sense since it doesn't really work in the scaling. It would be like saying you have to stand 15 feet away to see something an average person could see 20 feet away, which is basically the same as 20/25.
It's 20/15, but that's not the logic behind it. The 15 opposed to 20 has to do with the degree of curvature of your eye
i believe 20/15 is bas enough to where you need glasses or contacts to see things like footballs and baseballs at long ranges, especially at night. But for the average no sport playing person its Okay. Doc told me i have 20/15 and my vision sucks.
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