Do yourself a favor... get LASEK, not Lasik. Yeah, you'll go home from the procedure with what's basically a medically-induced corneal abrasion that'll sting for a day, burn for 2 or 3 more, leave you functionally blind (able to do things like watch TV, but not reliably read) for about a week, and be slightly blurry for a couple of months as it heals... but ultimately, you'll almost certainly end up with sharper vision than you'd get from Lasik, and you'll avoid the #1 risk of Lasik -- flap complications -- because no flap-cutting is involved.
LASEK is basically a refinement of PRK, except a thin layer of cells is lifted away from the cornea before ablation, then carefully laid back over the cornea before the bandage lens is placed. I had it done ~5 years ago, and it was the greatest thing I ever did. I have a couple of friends who had Lasik, and one of them had an "incident" while the flap was being cut that left his vision in that eye permanently compromised. It's admittedly one friend out of a dozen or so who've had Lasik, but if you look at the odds of flap complications (roughly 1%, last time I checked) and realize those odds are PER EYE... well... it's sobering. Eliminate the flap, and you've eliminated the majority of things that can (and do) go wrong during and after laser surgery.
Given a choice, most opthamologists would RATHER do LASEK instead of Lasik, because it's safer, has fewer complications, and tends to produce better results... but the fact is, most people want pain-free instant gratification, and only Lasik offers that. LASEK requires a bit of sacrifice on your part, but give your doctor a few weeks, and he'll be able to give results you're likely to be more satisfied with for the rest of your life.
Seriously, though... the pain isn't unbearable or anything. You'll sleep through the worst of it, and after the first day or two it'll be more like the dull burn you feel when you're wearing old soft contacts. By the end of the first week, the pain will be gone, and your only lingering problem will be another week or two where you'll randomly lose your ability to read for a few minutes at a time because both corneas will decide to dry out and/or swell up at the same moment. And THAT can be avoided by simply doing your eyes a month apart instead of on the same day. Personally, if I were to do it all over again, I would have done THAT instead, and avoided the week or so of misery when I couldn't reliably read well enough to use my computer ;-)
