Laser eye surgery (LASIK) procedure: The cornea is cut with a knife (microkeratome), the corneal flap is folded back, cornea reshaped with a laser beam, and corneal flap placed in its original position.
Lasik surgery does not cause pain! You might feel some pressure on your eye during surgery, but the process will not be painful. Take a look at this Cleveland Lasik surgery infographic to learn more about the process.: