I'm buying glasses online and im not sure how prescriptions work but mine is -5.75 in one eye and -6.25 in the other
the website recommends I get a high index lens but its very expensive and the one at 1.57 index is free so I rather get that one but would it make a big difference?
I don't understand what it means and id appreciate some info. How much would it effect my vision if I got the cheaper one? is it a big deal?
См. статью: High index lens, glasses?