I've wore/found a few different glasses that tend to give me a pain after wearing for awhile. Usually right at the end of the glasses where the ear piece wraps around and presses against the back of my head.
You just have to try on a few different pairs/styles to find what works for you.
Finding something you like the looks of and feel is the best and treat em like your sun glasses or eye glasses. Keep track of them and bring them with you to events.
-p
Safety glasses cheaper than seeing eye dogs!
