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Lasik vs. Contacts
Dr. Mark Sibley, Devil Rays Team Eye
Doctor, announced the results of a study that indicates for the first
time that LASIK is safer than contact lenses.
Results of a study that indicates for the
first time that LASIK is safer than contact lenses
LASIK Surpasses Contact Lens in Overall
Long-term Safety
According to a study published in the
Archives of Ophthalmology, October 2006 edition, researchers have
confirmed that LASIK surgery as performed this year is safer than
contact lens use. Sight threatening infections from contact lens use
occur in 1 in 2,000 contact lens wearers, whereas the study confirms
that only one in 10,000 patients risk significant vision loss due to
complications from LASIK, making LASIK the safest elective procedure
being performed today.
Dr. Mark Sibley, a laser vision specialist who helped introduce laser
vision correction to the area in 1999, has been convinced of this for
some time. The risk of Lasik laser vision correction has been
diminishing as technologies continue to evolve. In 2001, the All-Laser
, No Blade method was introduced, which dramatically decreased flap
complication, making All-Laser LASIK safer. In 2003, Dr. Sibley
introduced Custom Cornea LASIK, which, in addition to improving
vision, also proved to eliminate night glare, one of the early common
complaints of LASIK patients.
All eye doctors are aware of the potential dangers of contact lens
infections. Tens of millions of Americans may be at risk of these
serious infections for which there is no prevention.
Basically everyone wearing contact lenses is at risk.
"Patients usu=ing contact lenses must remember that ALL contact lenses
are a THICK PIECE OF FLAT PLASTIC . You are placing a plastic, foreign
body in your eye and running the increased risk of causing a
preventable infection," says Dr. Sibley.
A medical study showed that people who wear daily contact lenses run
the risk of 1 in 100 of developing a bacterial keretitis, an infection
that can lead to a loss of vision.
Patients who abuse contacts by wearing them overnight or improperly
caring for their lenses have ALMOST 10 TIMES GREATER risk of
infection and losing vision.
"One should not assume that contact lenses are safe," explains Dr.
Sibley. "It may have been true years back but not anymore, since
wearers of lenses are prone to serious infections. Sadly, 1 in 2,000
will lose some vision or worse." Infections have become a serious
threat to 30 million wearers who may not take good care of their
contact lenses as well as episodic occurrence of epidemics of
untreatable infections.
According to statistics from the Center for Disease Control (CDC) from
5 years ago severe outbreaks of untreatable infections by
Acanthemoeba were observed in the US population. Many eyes were
blinded and some needed to be removed. The CDC has this year reported
another epidemic of an untreatable Fusarium fungus germ with similar
sight loss.
Lenses are more harmful now and infections can lead to serious loss of
sight.
Meanwhile ,conversely, LASIK which years ago did have risks has gone
through diligent work by doctors as well industry leaders. This has
lowered the risk of Lasik and LASIK is much safer as compared to
contact lenses.
Today, LASIK as practiced by experienced surgeons on properly selected
patients is safer than wearing contact lenses.
Surgeons who use the safest and most advanced lasers and who utilize
the sophisticated screening technologies provide an unprecedented
level of safety, said Dr. Sibley. "The widely held belief that contact
lenses are safer has now been officially challenged," announced
Dr.Sibley .
Contact Lens wearers are more likely to develop complications that
lead to loss of vision than patients who underwent LASIK.
In the past, all LASIK surgeons observed some unexpected adverse
effects in the early days of the evolution of LASIK. They became the
bases for the exaggerated, sensational stories that were reported in
the tabloids for the past couple of years.
"Since LASIK has gotten so good we don't expect further negative
reports in the papers", says Dr. Sibley. "We've worked out the risks
over the past 16 years in the development of an ever-improving LASIK
technology."
Recently, a large study of more than 32,000 U.S. Armed forces members
who had an eye laser surgery found no vision loss greater than two
lines from 20/20 and none had infections in 18,000 procedures
performed over ten years.
University Eye Institute compares
study data indicating complications worse with contacts than
laser eye surgery.
PORTLAND,
Ore. - 09 Oct 2006 - EurekAlert -- Traditional assumptions have
held that contact lenses are safer than laser surgery to correct
vision problems. Now, an Oregon Health & Science University
Casey Eye Institute physician, comparing data from several
recent studies, has found that belief may not be true.
William Mathers, M.D., professor of ophthalmology in the OHSU
School of Medicine, reviewed several large, peer-reviewed
studies and found a greater chance of suffering vision loss from
contact lenses than from laser vision correction surgery, also
known as "refractive" surgery. His findings are published in a
letter in today's issue of Archives of Ophthalmology.
"Several times a year, I have patients who lose eyes from
complications because they've been wearing contacts and they've
gotten an infection. By this I mean their eyes have to be
physically removed from their bodies," said Mathers, an eye
surgeon with a strong background in contact lens issues and
former president of the Contact Lens Association of
Ophthalmologists. "It's not that contacts aren't good. They're
better than they've ever been. But one cannot assume contacts
are safer."
The risks associated with laser surgery versus contact lenses
can not be compared directly, partly because complications from
contact lenses accumulate over years of use, and complications
from surgery occur soon after the surgery.
Data extrapolated from a study in Lancet shows the lifetime risk
of bacterial keratitis to be 1 in 100 for contact lenses worn
daily. Bacterial keratitis is an infection that causes an
inflammation of the cornea and can lead to vision loss. Wearing
contact lenses overnight or improper care or cleaning further
increases the risk of infection from contacts. The risk of
bacterial keratitis has changed little over the years for
contact lens wearers and is the same worldwide.
Vision loss from laser surgery is easier to calculate. Mathers
looked at a large study of military personnel who had laser
surgery and found results similar to those of the OHSU Casey
Vision Correction Center.
A study of more than 32,000 U.S. Armed Forces members receiving
laser surgery published in the journal Ophthalmology found a
loss of vision of one line on an eye chart was 1 in 1,250. A
loss of two or more lines of vision, which would be more
significant, but less frequent, was not reported. Data from the
OHSU Casey Vision Correction Center showed no cases of vision
loss greater than two lines in 18,000 procedures performed over
10 years.
"Even with perfect care of your contacts, the risks for
infection and vision loss are still there," said Mathers. "Our
long-term results at OHSU confirm the experience of the U.S.
military: Laser surgery is as safe, and probably safer, than
long-term use of contact lenses."
The calculated risks of vision loss from contact lenses and
laser surgery are approximate and subject to change. Highly
oxygen-permeable contact lenses and advances in laser surgery
should make both even safer. There are approximately 20 million
to 25 million contact lens wearers in the United States, and
approximately 1 million people in the United States have laser
surgery every year.
"Data from these studies strongly suggest our intuition
regarding these risks needs to be reassessed," Mathers said. "I,
for one, look forward to further investigations of these risks."
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