Laser Surgery

Can laser surgery
help me see better?
Technological advances have made it possible to correct more vision
problems than ever before through various types of laser surgery.
To understand laser surgery, you must first understand the way
your eyes work. You’re able to see because one part of your
eye—the clear front portion of your eye called the cornea—helps
to focus light on the retina at the back of the eye. When the shape
of your cornea is distorted—too steep, too shallow or flat,
or even irregular--the image you see is unclear. Contact lenses
and eyeglasses may help correct this fuzzy image, but many people
prefer a more permanent solution. That’s where laser surgery
comes in.
Laser surgery uses a tiny, focused beam of light to reshape the
cornea. This lets the light pass through the cornea at the correct
angle so the image on the retina is clear. There are several types
of laser surgery currently used.
LASIK or Laser in-Site Keratomileusis is the laser procedure most
commonly used today. In LASIK, the doctor uses a computer-controlled
Excimer laser to reshape the cornea. LASIK combines the use of
the laser with a surgical procedure called Lamellar Keratoplasty.
This procedure creates a flap of the cornea. The flap is lifted
and the laser is used underneath. The flap is then folded back
in place and acts as a bandage to speed up healing.
Other types of laser surgery include LTK (laser therokeratoplasty),
RK, (radial keratotomy) and PRK (photorefractive keractectomy).
Your optometrist can explain the differences in the various procedures
and recommend which type is most appropriate for you particular
situation.
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