Cataracts by
Rochelle Steinhaus
Stitches. eye
patches and a long road to recovery are, usually to be expected after cataract surgery.
But for some patients, watching television and reading the newspaper are activities they
are able to resume -- from the minute they leave the hospital.
"I had a
patient go play golf the same day," said Dr John S Kung, an
Eltingville ophthalmologist.
Although
activities requiring visual attention may be dificult at best and impossible at worst
after a traditional cataract operation, new technologies gaining popularity over the past
two years are enablinng some patients to recover faster.
"They
are amazed that they could go home and read and watch television," said Eltingville
ophthalmologist Dr David Gerstenfeld, an eye surgeon at Staten Island University Hospital,
Prince's Bay.
A faster
recovery, however, is only one of the benefits resulting from the latest breakthroughs in
cataract removal techniques, lens replacement, and anesthesia, which have also paved the
way for surgeries involving no stitches. no patches and no needles.
"There's
faster visual recovery and no patch, so they can begin to see immediately after surgery.
The goal is to restore them to normal state as fast as possible" said Dr Kung.
who has performed hundreds of surgeries using the new procedure, technically known as
phacoemulsification.
Cataracts,
the yellow or brown discoloration of the eye's lens located behind the iris (the colored
part of the eye), result from a natural aging process, and most often affect those over
age 65.
"Since
the eye's lens is similar in function to the lens of a camera. if the lens of the eye is
cloudy, then so is our vision." said Dr. William C. Boozan, a Casleton Corners eye
physician, and eye surgeon with Bayley Seton Hospital and St. Vincent's Medical Center.
"The only way to remove cataracts is with surgery," he said.
Cataract
surgery is the most commonly performed operation in the United States, with over a million
a year, according to Dr. Kung, who is also an eye surgeon at Staten
Island University Hospital.
But since the
new procedures have only begun to garner popularity among doctors over the past two years,
the vast majority of ophthalmologists still utilize the traditional procedure, technically
known as extracapsular cataract extraction, which involves an injection of local
anesthetic to the muscles behind the eye, prohibiting its movement and numbing pain. The
surgeon then makes an incision into the white part of the eye, large enough to remove the
lens in one whole piece, and then proceeds to replace the lens with an artificial one.
Since the
incision is large, stitches are necessary, to seal the wound, and a patch is placed upon
the patient's eye to prevent it from drying out as a result of not blinking since the
surrounding area is still numb from anesthesia.
The patient
can see a few days later when the patch is removed. and it generally takes up to two
months to reach optimal vision.
The new
no-stitch technique, phacoemulsification, allows the cataract to be removed through a
one-millimeter incision, a fraction of the size required during the extracapsular
procedure, eliminating the need for stitches.
Instead of
local anesthesia. a topical anesthetic has been developed in the form of eye drops which
wears off in a lot less time.
"It
takes an average of 20 minutes to wear off. You don't even need a needle now." said Dr.
Kung.
"Topical
anesthesia cannot be used in the traditional cataract surgery. You can't numb the white
part with eyedrops. The nerve endings that are there are not susceptible to the
eyedrops." said Dr. Gerstenfeld.
This
technique. which is performed as the surgeon looks through a microscope. allows for the
incision to be made into the cornea, rather than the white part of the eye, preventing any
blood loss. "In the cornea there's no blood vessels," said Dr. Gerstenfeld,
adding that eliminating blood loss decreases the risk for people with serious medical
conditions, such as diabetes.
The incision
Itself is made in a beveled manner, allowing the eye to literally seal the wound by
itself. "The cornea has natural healing properties that the white [part of the eye
doesn't," said Dr. Gerstenfeld.
According to
doctors. a widely-held misconception among patients is that phacoemulsification involves
laser technology. "Laser became the buzz word of the '80s and '90s. There's no such
thing as laser cataract surgery," said Dr. Boozan
To extract
the yellowed lens through the tiny hole, an ultrasound probe is inserted through the
incision, and generates sound waves to break up the cataract into small pieces. The other
parts of the eye are shielded from the ultrasound with a protective coating.
"The
machine put in the eye emits a high-frequency sound wave, disrupts the molecules and
breaks them up," said Dr. Gerstenfeld.
After the
ultrasound breaks up the cataract, the probe then vacuums the pieces out of the eye.
Next. the
surgeon must replace the lens through an incision that is much smaller than the lens. To
address this problem, foldable lenses made of soft plastic have been developed to squeeze
through the incision and unfold in place.
"You
begin to get vision back the day of surgery, normal vision [within two weeks of]
surgery." said Dr. Gerstenfeld.
Besides
doctors and patient the new procedure is also being lauded by insurance cmpanies, since
faster recovery periods and fewer complications are cost-effective. Both cataract
procedures have the same billing code, according to Dr. Gerstenfeld. so there is no cost
difference to patients.
"There
is no cost comparison. Insurance companies nowadays are encouraging doctors to do these
procedures because they lead to fewer post-op visits, and there tend to be fewer
complications. Insurance companies are happy and reimbursement is the same." said Dr.
Gerstenfeld.
But since
this is a relatively new procedure, few doctors are trained to perform it. For example,
local anesthetic is still used by 95 percent of ophthalmologists, according to Dr.
Gestenfeld.
"The
experience of the surgeon is very important in this procedure." he said.
"It's a
very sophisticated, technically demanding operation," said Dr. Boozan.
Even if one's
doctor has undergone training with the American Academy of Ophthalmolgy to perform
phacoemulsification not all patients are good candidates for the procedure.
Patients
whose pupils do not dilate properly, which comprise about 10 percent of the populalion are
not eligible for this type of surgery.
People wtth cataracts in advanced stages also are not suited for the operation, since the
ultrasound won't be able to break up such a thick cataract.
But for those
who are not good candidates or whose doctor of choice does not yet perform this type of
surgery do not despair. The traditonal methods, which are still the most widely used, are
just as effective, according Dr. Boozan
"One is
not necessarily better than the other. Advertizing about 'no stitch' techniques imply
stitches are a backward technique. It's simply not true," said Dr. Boozan, who
performs both types of operations regularly.
But in terms
of its immediate effects and patient comfort, doctors are very excited about the medical
innovation.
"Nationwide its becoming more and more adopted," said an enthusiastic Dr.
Kung, who has performed the procedure hundreds of times and teaches it to new
doctors at Columbia Presbyterian Hospital, Manhattan.
"I
found it to be amazingly beneficial to patients. The patient satisfaction is tremendously
high," said Dr. Gerstenfeld who says he recommends phacoemulsification to his
eligible patients. "I'm convinced of it's effacy and I'm very enthusiastic."
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