unless they are using a laser from a James Bond movie, then your eye can be reshaped if you doctor isnt a complete buffoon.I'd guess going blind.....
my mother had RK surgery over 15 years ago, which was a lot more "dangerous" than the current Lasik lasers. thankfully no one really uses RK surgery anymore
before i got Lasik surgery, i couldnt make out a face 5' from me. now i have 20/20 and close to 20/15