In many cases (nearing 40%) people end up with worse vision after some number of years. A very high percentage end up with significant problems such as really bad astigmatism. Severe issues such as near blindness, detached corneas, etc are also way too common. There are several good YouTube videos on the subject.

And anecdotally, half of the people who I know that got it done 10+ years ago have had their eyesight regress back to the way it was before or worse.

I honestly don’t know how lasik is allowed to persist with such high risk of complications.