This Medical Video: LASIK or Laser-Assisted In Situ Keratomileusis is a surgical
procedure intended to reduce a persons dependency on glasses or
contact lenses.
LASIK surgery is most commonly performed as a
cure for myopia (nearsightedness), but can also be used to cure
hyperopia (farsightedness) or astigmatism (corneal
irregularities).
LASIK is a procedure that permanently changes
the shape of the cornea using a special laser and thus focusing the
light rays exactly on the retina.
The steps of the procedure are
as follows
A suction ring is placed on the eye to stabilize and
check the eye pressure.
The microkeratome, a cutting instrument,
is attached to the suction ring.
The blade of the microkeratome
is used to cut a flap in the cornea.
The exposed inner layer of
the cornea is then reshaped with an excimer laser.
The corneal
flap is returned to its original position.
LASIK is an ambulatory
procedure; the patient can walk into the surgery center, have the
procedure and walk out again and is awake the whole time.
Occasionally, the doctor may administer a mild oral sedative.