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Laser Epithelial Keratomileusis (LASEK) is a new procedure
similar to LASIK, also known as Epilasik but the flap is
created differently. In a LASEK procedure, the surgeon
temporarily removes only the epithelium (top layer of the
cornea) instead of the epithelium and part of the deeper
stroma layer as done when creating a traditional LASIK flap.
The excimer ablation is performed under a hinge flap of
corneal epithelium. With this procedure advantages include;
thirty-five percent less tissue is removed, therefore the
patient's who have thin corneas are now a candidate for
laser vision correction. Also, no microkeratome is needed;
therefore all complications associated with stromal flaps
are eliminated. LASEK appears to be a superior option for
patients with dry eyes.
Postoperatively, patients are not quite
as comfortable as LASIK patients. Also, vision is somewhat
blurry for the first 4-7 days. So, in the first
postoperative week, traditional LASIK has more "wow" appeal.
However, after 1-2 weeks, vision with LASEK is as good, or
slightly better than, with LASIK. In the near future, LASEK
is expected to be the preferred treatment for most patients.