What is the average eye sight for humans? How bad is one's eyesight if you are 1, 2 or 3 SD below average?
I googled but it was hard to find good search terms.
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Sign up to join this communityWhat is the average eye sight for humans? How bad is one's eyesight if you are 1, 2 or 3 SD below average?
I googled but it was hard to find good search terms.