Hang on a second guys. I can't see a foot in front of my face without my glasses, but I've got a 3rd class medical, and am pretty sure I would have no trouble getting my first class when the time comes. Notice that the regs state with or without correction, so as long as there's a way you have 20/20 or better vision (with glasses, contacts, LASIK, little pieces of paper with tiny holes in them, etc...), you can fly just about anything (unless it's for the military).
Indeed. Never go by anything you see unofficially on the web either (ie, my CAA link in my original post I would consider accurate, the second link being non-FAA I would take with a pinch of salt) - ask a professional in that field - preferably an aviation doc or optician.
LASIK opens another can of worms entirely, but certainly answers can be found quite easily on the FAA site. From my experience it tends to be military operators who
may have a problem with it (mainly due to the fact the cornea has a flap cut and lifted, the laser does its thing and the flap then lies back in place, but doesn't heal - whcih potentially could have serious implications for ejecting etc)