> how do you make sure you don't make any mistakes while doing so My prescription is fairly simple, so there's very little that can go wrong. I just double-che

> how do you make sure you don't make any mistakes while doing so My prescription is fairly simple, so there's very little that can go wrong. I just double-check my prescription against what I'm ordering, and voila, $25 glasses that I don't have to worry _too_ much about my child stepping on.