When brian wade a teacher in l.a, bought new glasses last year, he got scratch resistant , polycarbonate lenses and paid $45 extra for an antiglare he chose was vulnerable to scratching regardless of the quality of lens beneath it, a professor at the llinois college of optometry, but overall you get what you pay for , at the very least look for a one year warranty on coatings shrum says.
Frames should be covered for defects for at least 90 days, but ideally a full year and paying a little as$25 more, frames in the $100 to $150 range, he says are typically made more carefully with stronger plastic or metal and hold their shape better. But anything over $200 experts agree, means you re likely paying for style or a de signer name..