I did months worth of research into laser eye surgery, including looking at sites on how laser eye surgery ruined peoples' lives, and imagined myself as one of the people who might have appalling things going wrong - and as one of the people who ended up with more common complications, like permanently irritated, dry eyes, and I imagined every possible complication in between. I then made sure that I went to someone with a phenomenal reputation who had fixed other peoples' bodge ups and operated on other eye surgeons (who really ought to know the risks, even if others don't understand them). And even then I panicked at the last minute and nearly didn't go ahead with it, got tetchy at every little symptom post-surgery and went back to the clinic more often than the standard check-up times to ensure that everything was going OK, because I'd made myself so incredibly aware of all the known possible complications. And even now I'm aware that no-one can promise that something that appears to have a good track record over 10-15 years won't have unexpected problems cropping up 30 or 40 years later. But I still went ahead with it - in the full knowledge that I was fiddling with one of my most vital senses - and still don't regret it.
Anyone who goes ahead with this procedure without having researched it properly is a bit (well, actually a lot) of an idiot, but that doesn't mean that everyone who goes ahead with it is an idiot. To go ahead with an optional procedure like this, on a vital part of the body, without being fully aware of the risks is just plain stupid, but I take exception to people warning others that they should never have the procedure done if they have any sense in their head. You might as well tell people that if they had any sense in their head, they would never drive a car, because the consequences of crashing it can be so appalling. Everyone has their own personal risk assessment to make, weighing up the pros and cons in relation to their own lifestyle, personality, existing eyesight, any extra known risk factors specific to them, etc, and then they should make their own decision based on this, not on other peoples' scare or success stories. I would be very sad if my operation had gone wrong, or if in future years I end up with painfully dry eyes and incurably poor vision directly connected to the operation I had earlier in life, but I wouldn't be angry or bitter about it, because I was aware of the possibility and did everything I could to minimise the risk factors (but was still willing to take the risks).