I know they hold your eyelids apart but after a while the strain would be unbearable, i'd want to close them, but can't...and probably move my eyes at the wrong moment.
That's why i'm never -ever- getting it, eyes+scalpel + nervous twitches = NO!
Then again, I suppose you'd be 100% focused on the job at hand, it's something you wouldn't want to mess up!
afaik they basically put drops in so you really shouldn't feel any pain or discomfort past the unatural feeling of eyes open and what not. Your eye can move but the laser during the actual procedure has some pretty sophisticated optical sensors that track your eye movement and stop the laser the second it moves out of tracking range(the smallest of split seconds actually) so from what I understand theres very little risk in it.
I've also been looking around and I've yet to find, and it seems nobody has yet found a complaint of someone losing vision in their eyes or any reports of anyone at all going blind from it at all. In general the worst outcomes are infections after, very very dry eyes and even in 99% of those worst cases they are short term and very very fixable. Eyes essentially get upset when you screw with them and can be iffy for days/weeks after but wetting eyes with drops basically fixes it till it all calms down. Infection is treatable pretty damn easily, again, drops(and apparently 1 in every couple hundred contact lense wearers, me included a couple months ago

get infections aswell so equal risk really).
Its something like 5% of all procedures have complications, but those range from not good enough vision after, infection, dry eyes, but it would seem that only 5% of that initial 5% or so have long term issues. Most places will repeat the procedure if the eyes aren't at a good enough vision and for free(the quality places will anyway) and many offer free repeat procedures for deteriorating eye sight in the next few years aswell, something to certainly keep in mind when finding a quality place to get it done.
The thing that has almost certainly now made up my mind to get it done is this, I always assumed going blind was a very small but very real possibility but I also assumed that probably a few people a year did actually go blind, which doesn't seem to be the case. I also always though, laser surgery, small risk but still a risk and glasses and contacts are basically risk free.
However, after 15 odd years of wearing glasses and contacts it occurs to me, injuries to face during sports while wearing glasses has happened and the chance of tripping and getting unlucky and hurting eyes with glasses is possible. I also got a small scratch from a contact lense leading to a fairly bad infection so neither are risk free and in reality carry the same risk the surgery does.
So when I get the money I'm about 99% certain I'll get it done now as the idea of great vision is too good to pass up really. I've now got -7/-6.25 in my eyes which makes life incredibly poor without glasses/contacts and glasses are now getting pretty damn thick, heavy and expensive and I find the dailies far to comftable compared to the monthy lenses also, and they are stupidly expensive in comparison for still not perfect vision.