How LASIK Works

The excimer laser is an extremely advanced and precise technique, evidenced by the high success rate with LASIK and the rapid recovery of vision. Patients have the option to have both eyes treated the same day, one immediately following the other. Most of my patients elect to have bilateral treatment in order to minimize their time out of work.

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Laser refractive surgery works by changing the curavature (shape) of the cornea of your eye. Using the special characteristics of the excimer laser, we are able to remove microscopic amounts of corneal tissue in a precise manner without causing any burning or scarring to the surrounding tissues. The excimer laser is a cold laser - you can hold your hand under it without getting burned.

LASIK is a procedure where in the laser ablation and tissue removal is done under a flap of corneal tissue that has been created with the use of a microkeratome or femtosecond laser. LASEK is a procedure where in the surface cells are removed prior to the treatment of the underlying tissues with the excimer laser. The cells are replaced following the laser treatment (see The LASEK Procedure for more details).

To correct myopia, tissue is removed from the center of the cornea to flatten its curvature. To correct hyperopia, tissue is removed from the periphery of the cornea to steepen the curvature. To correct astigmatism, the laser is programmed to remove a different amount of tissue from different planes of the cornea.