I have a lens replacement in one eye (yes, I'm strange). Anyway, I'm with jmiked… I wear Foster Grant wrap arounds that I bought at Walgreen's for $15. They're labeled for Driving, but I like them for cycling. There's also a Sports series, but I actually find the Driving ones more comfortable. I do pop out the little rubber plugs in the ear piece… I don't need them THAT secure, and they pull at my hair… that may or may not be an issue for you.

Anyway, anything with full UV protection will do you fine. Also great if they don't fog up on you.