Does anyone know what percentage of the world has perfect vision, without correction(glasses or contacts)?
Question:
Answer:
this is kind of a trick question. statistically worldwide...very few people have a prescription of *exactly* zero. most people are a little bit FARSIGHTED.
minimally farsighted people see excellently...they definitely do have "perfect" vision...until they reach their 40's. then all bets are off.
so statistically worldwide...something like 52% of all people "see perfectly" until their 40's
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