|
Lasersurgeryforeyes.com
provides a listing of Laser Vision Correction Surgeons. Some of the surgeons
may include cataract removal surgery in their practice, but not all the
surgeons in our directory perform this procedure.

"Cataracts
are a leading cause of blindness among adults in the United States, accounting
for one out of every seven cases of blindness in people age 45 and older.
Although most prevalent in adults, a cataract can occur in young people,
and can sometimes be found in a baby's eyes at birth."
- Prevent Blindness America
Over
95% of cataract surgeries improve vision, but a small number of patients
may have problems. Symptoms including infection, bleeding and swelling
or detachment of the retina are some of the more serious complications
that may affect your vision. Call your ophthalmologist immediately if
you have any of the following symptoms after surgery:
A
person with cataract views the world as if through a dirty window or a
windshield that needs defrosting. Glare becomes a serious problem. Color
perception becomes muted. Reading, driving, computer work, hobbies, and
athletics become less easy and eventually impossible due to diminished
vision.
Unfortunately
there is no proven medical treatment to prevent, delay, or reverse the
development of cataracts in adults. Many medical agents are under investigation,
but none have been proven absolutely effective. There is evidence however
that antioxidants, specifically vitamins A, C, and E may delay the development
of cataracts.
A
cataract is a progressive clouding of the human lens inside the eye. The
lens is a small oval like structure and consists of a thin capsule (like
saran wrap) enveloping a bag of protein. The protein is crystal clear
and colorless at birth but discolors and clouds with age: first yellow,
then brown, and finally cloudy. When the lens becomes cloudy and interferes
with vision, it is called a cataract. The lens no longer transmits or
focuses light clearly. A cataract is not a growth, a "skin", or a disease.
It is usually not a sign of eye or systemic disease. Usually cataracts
affect both eyes but often develop at different rates in each eye.
Yes. The clouded areas become larger and denser and cause the patient's
sight to become worse. The time taken for this to happen varies from a
few months to many years.
Glasses focus light, they do not improve transmission
of light. If a window has dirt on it, even with binoculars we cannot see
through it clearly.
Painless blurring or dimming of your vision
Sensitivity to light and glare, especially in bright sunlight or while
driving at night
Increased nearsightedness, requiring frequent changes in your eyeglass
prescription
Distortion or ghost images in either eye
Smoking
accelerates cataract development and should be avoided.
Some improvement with glasses is possible until the cataract becomes severe.
Routine
eye exams are important in watching
for cataract information that may be the result of medicines or general illnesses.
|Top|
A
regular eye exam is all that is needed to find a cataract. Your eye doctor
will ask you to read a letter chart to see how sharp your vision is. You
will probably get eye drops to enlarge your pupils. This helps the doctor to see the inside of your eyes. The
doctor will use a bright light to see whether your lenses are clear and
to check for other problems in the back of your eyes.
Other
eye tests may also be used occasionally to show how poorly you see with
cataract or how well you might see after surgery:
-
Visual
acuity test: This eye chart test measures how well you see at
various distances.
Pupil
dilation: The pupil is widened with eyedrops to allow your eye
care professional to see more of the lens and retina and look for
other eye problems.
Tonometry:
This is a standard test to measure fluid pressure inside the eye.
Glare test
Contrast
sensitivity test
Potential
vision test
Specular
photographic microscopy
Only
a few people need these tests.
|Top|
Initially the cataract changes the focusing power
of the eye, and a change of glasses can satisfactorily improve vision.
Gradually, clarity drops so that visual tasks become increasingly difficult,
despite the best possible glasses.
A
person with cataract views the world as if through a dirty window or a
windshield that needs defrosting. Glare becomes a serious
problem. Color perception becomes muted. Reading, driving, computer work,
hobbies, and athletics become less easy and eventually impossible due
to diminished vision.
|Top|
Age-related cataract: Most cataracts are related to aging.
Congenital cataract: Some babies are born with cataracts or develop
them in childhood, often in both eyes. These cataracts may not affect
vision. If they do, they may need to be removed.
Secondary cataract: Cataracts are more likely to develop in people
who have certain other health problems, such as diabetes. Also, cataracts
are sometimes linked to steroid use.
Traumatic cataract: Cataracts can develop soon after an eye injury,
or years later
|Top|
Cataract
surgery is elective. It is done only when the person wants and needs it.
Everyone has a different personality and different needs. Choose to have
surgery when you cannot see to enjoy or perform to your satisfaction in
jobs, hobbies, driving, athletics or outdoor activities. Some people are
more demanding of their vision, and have surgery earlier than others who
are not troubled by diminished vision.
Between the ages of 52 and 64 you have a 50% chance of having a
cataract, but you probably won't experience any problems with your vision
until about 65. By 75 years of age, just about everyone has a
cataract; and people between 75 and 85 years of age 50% of the
have lost some vision as a result.
|Top|
|
Cataracts
cannot be removed with a laser, only through a surgical incision.
There are laser devices for cataract removal under investigation,
but none are approved by the Food and Drug Administration. In cataract
surgery, the cloudy lens is removed from the eye. In most cases,
the focusing power of the natural lens is restored by replacing
it with a permanent intraocular lens implant.
Nearly all cataracts today are removed by extracapsular surgery,
in which the posterior capsule of the natural lens is left in place
to support the plastic replacement lens which is implanted at the
time of surgery. Both "one-stitch" and "no-stitch" surgery are just
variants of phacoemulsification.
The
incision used in the surgery may be placed in one of several locations
and the architecture of the incision may vary as well. The same
incision may be "no-stitch" if the incision is watertight following
surgery, or "one-stitch" if it is not, and requires a stitch to
make it so.
|
There is no non-surgical treatment for a cataract. Preventative measures
include wearing good ultraviolet (UV) blocking sunglasses to protect your
eyes from the sun. Anti-oxidant vitamins may retard cataract changes.
Smoking accelerates cataract development and should be avoided. Some improvement
with glasses is possible until the cataract becomes severe. Routine eye
exams are important in watching for cataract formation that may be the
result of medicines or general illnesses.
From
several months to several years after successful cataract surgery, a cloud
may develop behind the lens implant. This secondary cataract and will
blur vision much as the original cataract did.
The
YAG laser is used in the treatment of secondary cataracts. The YAG laser
makes a small opening in the cloudy membrane behind the lens implant.
This requires 2 minutes and usually results in immediate vision improvement.
The YAG laser is not used for the original cataract surgery. Read more
on
cataract removal surgery.
|Top|
Other sites for information on cataracts:
BUPA health information
The Schepens Eye Research Institute
The U.S. National Library of Medicine
Copyright © 2002 LaserSurgeryForEyes.com
All Rights Reserved.
Direct any questions regarding Terms of Use or the Disclaimer
to webmaster@lasersurgeryforeyes.com
|