The name "LASIK" is short for Laser In-situ Keratomileusis.  LASIK is used to treat low to high amounts of nearsightedness, astigmatism, and farsightedness.  LASIK combines the computer controlled precision of the Excimer Laser with the benefits of another type of refractive surgery called Lamellar Keratoplasty (a procedure where an instrument known as a microkeratome makes a small flap in the outer layer of the cornea).

Normal vision - to see clearly, light rays are focused on the retina by both the cornea and the lens of the eye. In a myopic eye, commonly referred to as "nearsighted", light rays from objects are focused in front of the retina causing images - particularly at a distance - to be blurred.

Treatment

Result After LASIK for Myopia Surgery

Before LASIK treatment for nearsightedness, light rays from viewed objects are focused in front of the retina. After the LASIK treatment, the "flatter" cornea (see the blue blue arrow) allows light rays to bend in such a way as to become focused on the retina. 

Over 96% of patients treated with the LASIK procedure at the Idaho Eye Center are no longer required to wear their glasses or contacts.  However, individual results cannot be guaranteed.