Having LASIK done does not impact your FAA medical?
Not sure about that, but attitudes have changed WRT corrective eye surgery over time.
Back when it was RK, it would get you disqualified for the Air Force Academy and maybe even all armed forces. They could detect RK via the scars left on the eye from the surgery.
Then the after better LASIK surgeries came a rash of AF Academy cadets who miraculously improved their eyesight during their time at the academy. With no detectable scarring on the eye.
Nowadays, it is not disqualifying for the AF Academy or the other services, IIRC.
I used to be adamantly against RK/LASIK for my own self, but I am less so today. Heck, I think the armed forces might benefit from providing it to some of their members, such as pilots.