Yes: You can stand 20 feet away from an eye chart and see it clearly whereas, someone else would have to move 5 feet closer to read the same chart compared to you. From good to bad: 20/10, 20/15, 20/20, 20/25, 20/30, 20/40, 20/50.....
Answered 10/10/2017
5.4k views
Yes: 20/15 is better than 20/20.
Answered 10/10/2017
5.4k views
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