Last year we had extra money in the flexible spending (I can never figure out how much to put in) and spent the entire bank on Oakleys with Rx lenses. I love them for riding... I worry like crazy every time I misplace them. They're also quite dark, and only have my distance vision corrected, so I can't see anything smallish without switching back to my bifocals.

Might want to give the over glasses ones a try too. Gotta check the balance in that flex spending acct. first though!