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The Dawning of A New
Era
Refractive surgery is experiencing the dawning of a new era with the
advent of the Excimer Laser. For many, Excimer Laser in-Situ Keratomileusis,
or LASIK, could represent the first step towards less dependence on
corrective lenses.
LASIK combines the precision of the excimer laser delivery system with
the benefits of Lamellar Keratoplasly (LK) proven to treat a wide range
of refractive errors. In the United States, LASIK is considered to be
an "off-label" use of the excimer laser. This classification
allows physicians to perform the procedure if they feel it is in the
best interest of the patient. How successful is the procedure? The vast
majority of people who undergo LASIK are able to pass a drivers' license
test
without their glasses or contacts. Since LASIK can be used to treat
very high levels of refractive error, it is sometime necessary to fine
tune the initial procedure with additional refractive procedures to
obtain the best final result.
Laser in-Situ
Keratomileusis (LASIK)
Utilizing the accuracy and precision of the excimer laser, LASIK changes
the shape of the cornea to improve the way light is focused or "refracted"
by the eye. First, a thin layer of the cornea, or corneal cap, is lifted
up as an instrument called a microkeratome glides across the cornea.
Then, in less than 60 seconds, ultraviolet light and high energy pulses
from the excimer laser reshape the internal cornea with accuracy up
to 0.25 microns. By adjusting the pattern of the laser beam, it is possible
to treat high levels of nearsightedness and moderate amounts of farsightedness
and astigmatism.
After the tissue has been reshaped, the flap is replaced in its original
position. Because of the cornea's extraordinary natural bonding qualities,
healing is rapid and does not require stitches. In most cases LASIK
is performed as an outpatient procedure in the comfort and convenience
of an excimer surgical suite. The entire procedure takes less than 30
minutes.
The procedure is performed cornea is using "eye drop" anesthesia.
Some patients report a slight, postoperative discomfort that can usually
be alleviated with medications. Many patients see a dramatic improvement
in their vision within the first day. For others, vision may be blurry
and fluctuate for several weeks or more. Most patients return to their
normal activities within a day or two.
The Best Candidate
LASIK is ideal for patients past the age of 18 whose corneas are healthy
and strong. If your prescription has increased significantly within
the past year, you should consider delaying your LASIK procedure. The
LASIK procedure should not be performed on patients who suffer from
certain medical conditions, or on pregnant women.
Expectations
The decision
to undergo a LASIK procedure is a personal one. Before undergoing LASIK,
it is important to know the risks involved, and to have realistic expectations.
A LASIK procedure can drastically improve, but not perfect, your vision.
Nor does LASIK correct for presbyopia, an aging of the eye that typically
requires people to use reading glasses. Many patients past the age of
40 may be required to wear reading glasses once LASIK has been performed.
Contact your doctor for additional information on whether you are a
good candidate for the LASIK procedure.
The First Step
Finding out more about your refractive error is your first step toward
visual independence. This is accomplished by calling Dr. Glinski and
scheduling personal consultation. Should your refractive error fall
within the range of correction for LASIK, more comprehensive tests will
be necessary.
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