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The practice
of ophthalmology today is based on a growing body of medical knowledge
and technology. With this growth has come the need for increased
specialization and, in turn, a collaborative effort in the care
of patients. Although small in size, the eye is complex and represents
a variety of tissue types functioning together as a unit -- skin,
muscle, glandular tissue, fat, pigmented tissue, collagen, protein,
blood vessels, and brain tissue. The eye is located in a bony
cavity called the orbit, which is surrounded by the sinuses, nose,
and brain. With the multiplicity of tissue types and the complex
structures around it, there is a need for sub-specialization and
collaborative efforts with other specialists.
Today, the
recognized ophthalmic subspecialties include ophthalmic plastic
reconstructive and orbital surgery, corneal and external disease,
glaucoma and uveitis, retina and vitreous, ophthalmic pathology,
pediatric ophthalmology, and neuro-ophthalmology. These subspecialties
are all represented in the Cizik Eye Clinic and collaboration
among the subspecialties goes on routinely. Each expert in a subspecialty
provides the cutting edge of ophthalmic knowledge to achieve an
optimal outcome for the patient. Examples are many: the ophthalmic
plastic surgeon consults with a corneal specialist regarding a
burn victim, the pediatric ophthalmologist consults with a retinal
specialist regarding a rare hereditary retinopathy, or the glaucoma
specialist seeks the advice of the ophthalmic pathologist regarding
cells he has removed from the eye of a glaucomatous patient. This
is the practice of ophthalmology at its best. The eye is part
of the whole patient, and we at the Cizik Eye Clinic constantly
use the many physician specialists, laboratories, and the top-notch
facilities of Memorial Hermann Hospital and The University of
Texas Medical School at Houston.
Although
we see the most serious problems that involve the eyes and visual
system, including very serious traumatic conditions, all the physicians
at the Cizik Eye Clinic welcome general ophthalmic patients.
When an ophthalmologist is besieged with patients afflicted with
rare ocular cancers, blinding diseases, or traumatic eye injuries
that rob healthy eyes of sight, it is a pleasure to see normal,
healthy eyes. The American Academy of Ophthalmology recommends
routine eye examinations every one or two years for patients over
the age of 55, at the onset of presbyopia (the loss of near focus
with age, statistically at age 42), and as a child, when a vision
problem is detected. Family members, friends, and other prospective
patients often ask if we “also just check for vision."
The answer is, “Yes!”
Patients
who experience the most serious trauma from motor vehicle accidents,
shotgun wounds, construction accidents, falls, and blows to the
head are seen at Memorial Hermann Hospital’s Trauma Center
because it is one of only two Level 1 trauma centers in Houston.
When the eye is involved in one of these complex trauma cases,
it is the ophthalmic plastic surgeon whose job it is to stabilize
the wound and close open wounds, suture lacerations, decompress
pressure, repair broken bones, prevent infection, and save the
eye whenever possible. This is the realm of the ophthalmic
plastic surgeon.
On
a lighter note, the ophthalmic plastic surgeon is the one to see
when considering cosmetic surgery of the eyelids--blepharoplasty.
In the hands of a less skilled surgeon, plastic surgery around
the eyes can result in eyelids that close incompletely and create
bothersome and sometimes serious eye problems. Cizik Eye Clinic
is fortunate to have one of the most skilled ophthalmic plastic
surgeons in Houston, Dr. Sherif Khalil.
You
hear about it on television and radio and read all about it in
the newspapers. Ophthalmology has long been a leader, even a pioneer,
in laser surgery, but the laser surgery that is the buzz these
days is refractive laser surgery. One may decide
he wants surgery only to find that, in our professional opinion,
the procedure would not be prudent. At the Cizik Eye Clinic,
our goal is to perform this elective procedure only when it is
appropriate. If you want the honest truth, make an appointment
with one of our experts at the Cizik Eye Clinic. Richard W.
Yee, MD, is Director of the Hermann LADARVision Center. Drs. Robert
M. Feldman, Judianne Kellaway, Helen Mintz-Hittner, Sherif Khalil, and Nan Wang also perform the procedure -- when it's in
a patient’s best interest. Dr. Ruiz often tells patients,
"It's the only surgery I've seen in all my years of practice
that looking through the microscope on the first day post-operatively,
you often can't tell the patient has had surgery."
There are
many types of glaucomas: open-angle, closed-angle,
narrow-angle, juvenile, secondary, traumatic, and others, but
the definition of glaucoma is always the same: elevated pressure
inside the eye, that damages the optic nerve. Some cases of glaucoma
can be painful and cause patients to seek medical care immediately.
However, in the vast majority of cases, glaucoma is a painless,
silent process that slowly and insidiously robs a patient of his
or her peripheral vision. Unfortunately, by the time a patient
becomes aware of vision loss, damage is advanced--and irreversible.
Most glaucomas are in the purview of the general ophthalmologist;
however, some of the more aggressive and elusive glaucomas require
an expert. At the Cizik Eye Clinic, Robert M. Feldman, MD, is
our expert and is in charge of the glaucoma service.
A
cataract is a clouding of the normally clear
lens of the eye. It can be compared to a window that is frosted
or fogged with steam. There are many causes of cataracts, the
most common is related to aging. The fact is, cataracts are like
wrinkles and gray hair--if you live long enough, you’ll
get them. However, only a small percentage of cataracts require
surgery. Removal of a cataract should be considered when the cataract
causes enough vision loss to interfere with one’s daily
activities --for instance, you no longer drive at night, you can't
see the television clearly, shopping is no longer fun, and glasses
won't improve your vision. More than 1.4 million people have cataract
surgery each year in the United States, and 95% of these surgeries
are without complications. After cataract surgery, one may return
almost immediately to all but the most strenuous activities. You
will need to instill eye drops and make two or three post-operative
visits. Cataract surgery is a highly successful procedure. Improved
vision should result in over 90% of cases. True, complications
can occur, but they are rare and most are managed successfully.
With few exceptions, all ophthalmologists perform cataract
surgery, including the physicians at the Cizik Eye Clinic.
Pediatric
ophthalmologists are physicians who are specialists trained
to diagnose and treat problems that affect children's eyes, including
strabismus (crossed eyes), amblyopia (lazy eye), and retinoblastoma
(a life threatening ocular cancer). Treating eye diseases in children
differs substantially from treating adults but includes prescriptions
for eyeglasses or contact lens, medications, and surgical intervention--including
refractive laser surgeries.
Today, clinically
useful estimates of visual acuity can be made on an infant as
young as three or four months by evaluation of the child's ability
to follow a light or moving object. Refined assessments of an
infant's vision can be obtained through behavioral responses when
the infant is shown objects of various sizes or by sophisticated
tests, such as electroretinograms, that analyze the retina's response
to light. In unusual cases, general anesthesia may be required
for a thorough eye examination in children under two years of
age.
Toys, games,
child-sized furniture, colorful pictures, and storybooks are popular
items found in the pediatric ophthalmologist’s office. Age-appropriate
surroundings are important in establishing rapport with young
patients, and they help facilitate the examination process. Toys
are used as diagnostic tools to attract the child's attention.
Cartoons are shown on a video screen to make the child look in
the desired direction. Visual acuity charts showing drawings of
objects familiar to children are used, such as birthday cakes
and horses, instead of standard letters used for adults. These
specialized tools, along with advanced technology, enable ophthalmologists
to identify eye abnormalities in children early.
The secret
to working with children is to eliminate fears and rely on their
natural curiosity and interest in new experiences. We are fortunate
to have on our faculty two of Houston's most respected pediatric
ophthalmologists – Malcolm L. Mazow, MD, and Helen Mintz-Hittner,
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