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A member asked:
How can i know my visual acuity?
A doctor has provided 1 answer
Compare to normal: You can get a rough idea if you have 20/20 by comparing your sight with someone who has perfect vision (or perfect with correction). Both of you view something at the limits of clarity (a sign far away) and if you both read it well, then you are 20/20. To determine lesser sight, you will need an eyechart and a proper lane.
Answered 12/4/2014
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