During this procedure the surgeon uses a special instrument to scrape away the top superficial layers of the cornea. The excimer laser then removes a pre-determined quantity of tissue, reshaping the cornea. The cornea then redirects the rays of light to refract on the correct area of the eye.
During this procedure, the surgeon does not need to create a corneal flap. Anesthetic drops, as well as diluted alcohol solution is added to the eye to loosen the outermost layer of the cornea called the epithelium. The ephithelium is then rolled back on the eye to expose the layers underneath. The treatment is then completed with the laser, after which the epithelium is repositioned. The eye will then require a contact lens bandage for about 5 days.
During this procedure, your surgeon will place a Intra-ocular lens(IOL) in your eye. Unlike in cataract surgery, this IOL does not replace your natural lens, but sits in front of the natural lens, assisting your eye to refract light.