Laser surgery gives, in general, very good fixed correction. It is excellent for people under 45 with vision that needs correction. There are occasional failures, yes, but they are quite rare.
But what about later in life (hello, 50) when your lens hardens and you can't focus it any more? Laser surgery will achieve nothing. You are still stuck with reading glasses.
Well, I had -7 vision and was mightily sick of being blind without glasses, found contacts a drag, and it's all damned expensive. My vision with my (very expensive) glasses was excellent, with contacts acceptable, but it was all annoying.
So I got lens replacement surgery. It's the same operation as for cataracts, but voluntary. And expensive (AUD 10,000). The replacement lenses are not focusable, so I got lenses with three focus points - close (reading), medium (screen, and distance. A Zeiss trifocal implantable lens.
The operation was quick, but unpleasant (you are almost, but not quite unconscious - not nice). Recovery involved many, many drops for a few weeks gradually diminishing to none.
Result - daytime vision is excellent, both near and far. I can read, compute, play sports.
Night-time vision is not so good, you get some haloing and other artefacts. I can drive ok, but stargazing is not so great.
These lenses will not harden further so my vision should stay the same for the rest of my life, which is nice.
On the whole I am pleased. It's certainly a joy to go swimming without concern, see in the rain, and even water ski. Amazing after a life of really, really poor vision.
I researched the surgeons, checked the research, and balanced the results against the side effects and risks. In fact, the risk of actual permanent damage - ie blindness - are very low indeed. After all, they do these operations by the thousand in Africa (look up Fred Hollows) in what must be poorer conditions.
Laser surgery was not for me - that would indeed have corrected my main vision problem, shortsightedness, but I would have been unable to read or compute without reading glasses - and where's the fun in that?
It's amazing to wake up in the morning