This is surgery to correct myopia,
hyperopia, or astigmatism. The procedure reshapes the cornea with an excimer laser.
LASIK has replaced many of the other refractive eye surgery methods.
This surgery is done using a
computer-controlled excimer cold laser. It also uses a tool called a microkeratome
(femtosecond laser). With these tools, the surgeon cuts a flap in the center of the
cornea. A thin layer of tissue is removed. This flattens the cornea. The flap is
replaced without stitches. It reattaches to the cornea in minutes.
Wavefront-guided LASIK is an
advanced method for measuring optical distortions in the eye. The technology can be used
to evaluate the eye before surgery. It measures how light is distorted as it passes into
the eye and is reflected back. This creates an optical map of the eye and shows problem
areas. The wavefront technology lets a LASIK surgeon adjust the laser beam settings for
a more precise procedure. This can give sharper vision and reduce nighttime vision
In most cases, recovery from LASIK
surgery is fast, with discomfort. Mild pain medicine and eye drops can help common
after-effects of surgery such as:
Possible complications include:
Corneal haze or glare
Sensitivity to light
Inability to wear contact
Loss of the corneal flap and
need for a corneal graft
Blurry vision or vision