Both. Erm... not at the same time, obviously.
I usually wear glasses but have a bunch if disposable lenses for going out etc.
Nobody done the laser eye surgery thing then? I know someone who has, and he's very happy with it (he had Eddie the Eagle style mega-thick glasses before). But whilst I have no qualms about sticking bits of plastic in my eyes with my fingers there's no way anyone's about to slice my eyeball open and burn bits of my retina... :?
I agree about wearing contacts in smoky places - I can't wear them when I'm really tired either. Dunno about casinos tho - I do all my gambling on-line