SURGICALCorneal Refractive WaveLight® FS200 Femtosecond Laser WaveLight® EX500 Excimer Laser Related Publications Femtosecond-Assisted LASIK Flap Versus Microkeratome-Assisted LASIK Flap Creation Refractive Surgery Two fundamentally different principles of flap creation: the microkeratome mechanically separates the corneal tissue with the blade to create a flap, while in femtosecondLASIK a spatula is required… Learn More © 2025 Alcon Inc. p-MED-UK-NP-250002