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LASIK is an exciting procedure which uses painless light
from a computer controlled Excimer Laser to reshape the
cornea (the clear front window of the eye), allowing clearer
vision without glasses or contact lenses for people who
have nearsightedness, farsightedness, astigmatism, or who
need reading glasses.
LASIK is a virtually painless procedure that usually takes
about 10 minutes per eye. After the eye is numbed with anesthetic
drops, an automated device is used to create a paper-thin
flap of tissue at the surface of the cornea. The flap is
then lifted out of the way, and the computer-controlled
Excimer Laser light is directed at the underlying corneal
tissue. The laser painlessly removes microscopic amounts
of corneal tissue, changing the shape of the cornea.
The Excimer Laser is so precise that it can remove a perfectly
rectangular "notch" from a human hair that is
1/200th the thickness of the hair. That tremendous level
of computer-controlled precision allows extremely accurate
reshaping of the cornea and is one of the reasons that LASIK
is so overwhelmingly successful.
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