LASIK is a surgical procedure intended to reduce a person's dependency on glasses or contact lenses.

LASIK stands for Laser-Assisted In Situ Keratomileusis and is a procedure that permanently changes the shape of the cornea, the clear covering of the front of the eye, using an excimer laser. A knife, called a microkeratome, is used to cut a flap in the cornea. A hinge is left at one end of this flap. The flap is folded back revealing the stroma, the middlesection of the cornea. Pulses from a computer-controlled laser vaporize a portion of the stroma and the flap is replaced.

LASIK, an acronym for Laser-assisted In Situ Keratomileusis, is a form of refractive laser eye surgery procedure performed by ophthalmologists intended for correcting near- and far-sightedness in vision. The procedure is usually a preferred alternative to photorefractive keratectomy, PRK, as it requires less time for full recovery, and the patient experiences less pain overall. Many patients choose LASIK as an alternative to wearing corrective glasses or contact lenses.

Contents 1 History 2 Procedure 2.1 Preoperative 2.2 Operation 3 Higher-order aberrations 3.1 Wavefront-guided LASIK 4 Complications 4.1 Preoperative sources of complications 4.2 Intraoperative complications 4.3 Early postoperative complications 4.4 Late postoperative complications 4.5 Other 4.6 Factors affecting surgery 5 Satisfaction 6 Safety and efficacy 7 References 8 See also 9 External links LASIK In New York