My honey had Lasik. He says there are a few parts of the procedure that he would describe as painful:

1.) After they applied some numbing drops, they drew on his eye with a special pen. He says his drops had not fully kicked in, and so it was a little painful.

2.) They use a tool to hold the eyelid open. He says this was also a little painful, but he believes it's because he fought it. He relaxed on the second eye, and it hurt nowhere near as bad.

3.) They put a suction ring on your eyeball to hold your eye still. He says this feels like someone putting a cane on your eye and leaning on it. He says this was the most painful part.

The thing he expected to hurt (the actual procedure itself) did not, and nor did he have anything he would consider as more than slight discomfort after all was said and done.

Of course, this is only one mans experience, so take it in that light.