Refractive Surgery: LASIK

LASIK (pronounced "LAY-sik") stands for laser in-situ keratomileusis. It's a technique for reshaping corneal tissue to help you see better without glasses or corrective lenses. This procedure uses an excimer laser, which produces a concentrated beam of cool ultraviolet (UV) light. Each pulse of the laser can remove a tiny portion of corneal tissue. LASIK can be used to correct hyperopia, myopia, and astigmatism.

What to Expect During the Procedure

• Before treatment, you may be given medication to help you relax.

• Eyedrops numb your eyes. A device is used to keep your eyes open.

• You may feel light pressure, but no pain, as your surgeon creates the flap in your epithelium (top layer of the cornea). The flap is folded back, remaining attached to the cornea.

• Your surgeon uses a computer-guided excimer laser to reshape the cornea. Laser treatment lasts for 10-90 seconds.

• The flap is put back into place. The corneal tissue sticks to itself while it heals.

• After treatment, your vision will start to improve right away. It should become stable in 1-3 months.