Call an aviation attorney and get legal advice. You should probably disclose it, just in case they ever find out somehow.

Most likely it will not be a big deal, as long as your vision has always been fine without any complications.

LASIK is legal to fly with, so as long as you were always fit to fly the FAA should not get sideways if you tell them before they find out.

But pay a lawyer, that form you've been signing all these years explicitly states "5 years or $250K fine" so this is not something you want to screw around with.

Some folks will tell you to let sleeping dogs lie, and that's far enough back in time that the records might not have been digitized and subject to some future .gov data dragnet. Not sure if an exam will detect scars from the surgery.