What Is Lasik Eye Surgery?
In the last decade or so, LASIK eye surgery has witnessed a
phenomenal growth in its popularity. As of now, millions of
people are choosing LASIK to meet their eye surgery needs.
Nevertheless, it is important to remember that LASIK eye surgery
is still a relatively new process about which a lot still needs
to be known. In this article, we will tell you what LASIK eye
surgery is and why you must ensure that the LASIK eye surgery
you are getting is of high quality conducted by professionals.
First, a few basic facts:
- LASIK eye surgery (Laser Assisted In Situ Keratomileusis) is a
procedure that is used to modify the cornea and allow a patient
to see without the use of glasses or other visual aids. It can
correct problems like myopia (nearsightedness), hyperopia
(farsightedness), and astigmatism (misshapen cornea). While not
all patients may experience a complete restoration of vision,
they can certainly see much better than before
- LASIK eye surgery involves minimal or no pain and requires
much less recovery time than other eye surgery procedures like
photorefractive keratectomy (PRK)
- Dr Lucio Buratto and Dr. Ionnis Pallikaris jointly developed
the LASIK eye surgery procedure in 1990. They based their
technique on two older eye surgery procedures - keratomileusis
and PRK. These surgical procedures involved more complications
and brought about less than perfect results, so when LASIK
offered fewer risks and better results, it proved an immediate
success. In 1991, LASIK was twice performed officially by Dr.
Stephen Slade, in Europe and later in the US
THE PROCESS
- Before you undergo LASIK eye surgery, you will be instructed
to discontinue the use of contact lenses for 1 to 4 weeks prior
to surgery to allow the cornea to return to its original shape
- At the start of the surgery, you will be administered a mild
anesthetic, usually orally, and numbing eye drops, which will
eliminate pain in most cases, though some patients still
complain of some discomfort
- A device called a microkeratome is attached to a suction ring
placed on your eye, the blade of which is used to cut a thin
flap on the surface of the cornea. The flap is folded back,
exposing a layer of tissue called the stroma, which is inspected
for debris and dried
- You will then be asked to focus on a fixed spot as your doctor
begins the laser, cutting and removing corneal tissue based on
the measurements taken at the initial examination. The flap is
then repositioned and left to heal. Because no stitches are
used, you will be required to wear an eye patch to prevent
rubbing, irritation, and pressure that might disturb the healing
process
- Both eyes can be operated on at the same time if you are
healthy enough and have enough recovery time. In some cases, a
surgeon will recommend that the patient receive monovision
treatment, which is the correction of only one eye. LASIK eye
surgery typically takes about 5 to 10 minutes per eye
WAVEFRONT LASIK: NEW TECHNOLOGY ON THE BLOCK
The newest technology in LASIK is the wavefront laser. The first
of these types of lasers received FDA approval in 2002.
Wavefront technology sends a wave of light to the retina. The
light then bounces back to a sensor, which measures the
irregularities of the cornea and produces a 3-D map of the eye's
visual system. The data from the sensor is then translated into
a mathematical formula that the doctor uses to program the
computer that controls the refractive laser. After wavefront
LASIK, 90-94% of patients enjoy 20/20 vision or better as
opposed to 80% with traditional LASIK eye surgery.
LASIK COMPLICATIONS
During surgery, complications related to the cutting or hinging
of the flap occur in less than 0.5% of patients. Other
complications occurring at less than a 1% rate include the
development of irregular astigmatism owing to scarring, healing,
or beam problems, infection, or other vision problems (halos
around lights, blurry night vision), surgery performed off the
center of the pupil owing to surgeon error or the inability of
the patient to focus on a fixed point.
ARE YOU A CANDIDATE?
This can vary depending on your doctor and the type of laser
used. The minimum requirements are that a patient must be at
least 18 years old and has had no drastic change in vision over
the past year. For patients with severe refractive errors LASIK
eye surgery may not be an option, but almost anyone with stable
and healthy eyes can be treated with some type of surgery.
COST OF LASIK
Plenty has been said about the cost of LASIK eye surgery. Some
clinics, for example, may claim that they can perform the
surgery at a starting cost of $299 per eye. But you should
realize at once that the amount is far too low and that no one
actually gets the surgery at that cost. On average, the cost of
LASIK eye surgery is about $1,700.