The LASIK procedure is completed under topical (eye drop) anesthesia and is typically entirely painless during and after the procedure. A few minutes prior to the procedure, anesthetic eye drops will be applied to numb the eye and prevent discomfort during the procedure. A speculum is placed to hold the lids apart, thereby preventing blinking during the procedure. The surgeon places a ring on the surface of the eye designed to hold the eye steady and increase the pressure in the eye. A microkeratome is utilized to create a thin flap of the corneal surface. The surface flap is gently folded to one side in preparation for the laser refractive "cut." The laser, being computer driven for accuracy and precision, is programmed based on the patient's refractive error (nearsightedness, farsightedness, astigmatism).

The laser delivery is completed next, and takes less than one minute for most patients. Laser delivery may take slightly longer for patients with hyperopia (farsightedness). Finally, the surface flap is returned to its original position restoring the surface integrity of the eye. The surgeon will often observe the eye under the laser microscope for up to 5 minutes to be certain the flap is securely in position. The speculum is removed and the patient may typically leave the laser center within the hour. Many patients now have both eyes treated with LASIK on the same day.

The surgeon uses a microkeratome to create the flap. The flap is then positioned to one side of the corneal "bed" as the Excimer laser beam (left) is applied.he same day.

The broad beam Excimer laser widens the treatment zone as the procedure progresses.

The laser beam ablation nearing completion as the edge of the laser beam approaches the borders of the flap.

The laser ablation is complete and the flap is being replaced. Once The flap is returned to preoperative position, the surgeon carefully checks and rechecks the flap to be certain it is secure and well-positioned.

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