LASIK has been performed more than any other vision correction in the world, and it has decades of results behind it. It is one of our six, and it is chosen from your scans exactly like the other five.
A precision instrument separates a thin protective layer at the front of your cornea and leaves it hinged on one side. This is the flap. An excimer laser, the ZEISS MEL 90, then reshapes the tissue underneath, following the plan built from a scan of your own cornea.
The flap goes back where it came from and heals without stitches.
The only difference from Femto-LASIK is how the flap is made. What happens underneath is the same treatment.