Don't set expectations too high.
I've done it and it worth it. No more glasses...... BUT my vision with glasses is a touch better. I still cannot see things super far away, and my super close vision is zero. But my overall vision is very good. I even went back for a free update. It waa great after I did it, but for whatever reason, the clarity regressed back to when I first did the surgery, in it really was a waste of time to do the update.
The junior reps at the place kept saying I'm 20/20 when I'd do the eye tests, but it's BS. I could barely make out the 20/20 charts, but the two people would just say year I'm 20/20 even though I'd get a letter or two wrong. They try to brush you off if you want a free update, BUT if you bug them enough to do it, they will.
Also, never fall for the TV ads where they say it's $500 per eye. It'll be much more. And don't fall for the "It's Dr. So and So" doing it. There are many docs at the place you do it, so the chances of actually getting that guy on TV is slim.
And if you have prescription sunglasses or nice frames with your existing glasses, keep them. They will promote to give them away, but don't. I used my existing frames took them to an optician and got normal sunglasses lenses put into them. if I threw out my glasses or donated them, I'd have to buy new frames again.
And, eye surgery is a medical procedure, so claim it on your income tax. Up to a certain amount of med expenses, you get $0 back, but most of you will have an eye surgery that costs more than the threshold, so claim it and get back a few bucks. Since you'll be over the med threahold, claim all of your other out of pocket med expenses to go with it..... dental, prescription drugs etc...
Overall, still worth doing.