LASIK (an acronym for Laser Assisted In-situ Keratomileusis) is the most commonly known laser vision correction procedure. During a LASIK procedure, the cornea has to be cut with either a microkeratome or a femtosecond laser in order to generate a hinged flap at a depth of approximately one-fifth of the cornea. LASIK’s popularity is due to a fast recovery and its nominal amount of post-surgical discomfort. Like all laser vision correction procedures, LASIK is an ambulatory treatment; the whole process is done in a matter of minutes, and both eyes are usually treated on the same day. Patients are awake the whole time; a mild oral sedative is generally given for relaxation; and good vision is usually achieved just a few days after surgery.