Can I see without a lens? |
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No,
the eye cannot focus properly without a lens. To restore focusing power after
cataract surgery, cataract glasses, a contact lens, or intraocular lens must
be substituted. Rarely, an IOL cannot be inserted, but 95 percent of the people
who have cataract surgery have an intraocular lens implant.
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| What are the advantages of an IOL lens implant? |
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An
IOL implant is permanent. And, unlike cataract glasses which magnify images,
an IOL produces a normally-sized and clear image on the retina, replacing the
focus power of the natural lens more closely than either cataract glasses or
contact lenses.
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| What are the risks? |
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Today's
implants are quite safe. But with any surgery complications can occur. There
is always a possibility of hemorrhage, infection or vision loss during eye surgery.
Dr. Ruzich will discuss potential complications with you.
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| How will an IOL affect my vision? |
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An IOL cannot adjust its focus
for both close and distant vision like the eye's natural lens does. With the
help of an ultrasound test (An A-scan) and the computer, Dr. Ruzich can determine
the general focusing power of the IOL before surgery. Although distance vision
is usually quite good, bifocal or reading glasses are often necessary for
close work.
Most people experience a return
of 20/40 vision - good enough to obtain a driver's license - shortly after
surgery, but the results can never be guaranteed. Your postoperative vision
depends on the health of the eye. If there are changes in the retina from
aging or other conditions, vision will not be perfect even though the surgery
was successfully performed.
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| Where will the lens be placed? |
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The
most popular placement site today is behind the iris in the posterior chamber
where the eye's natural lens is located. When removing the clouded lens, your
ophthalmologist will leave behind the lens outer membrane or capsule. The intraocular
lens is placed in the pocket formed by the emptied lens membrane and inserted
in place by a pair of loops.
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| Laser surgery for Glaucoma |
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Glaucoma,
which usually shows no symptoms until after considerable harm is done, damages
the optic nerve after a buildup of pressure within the eye. Annual screening
tests are recommended for Caucasians beginning at age 50, and for African-Americans
starting at age 35. If detected in the early stages, glaucoma can be effectively
treated to prevent loss of vision. Laser eye surgery for glaucoma is usually
indicated if medical eyedrops fail to control the condition.
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| There are three types of laser surgery for glaucoma: |
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Trabeculoplasty
uses a laser to place "spot welds" in the drainage area of the eye - also known as trabecular meshwork - that
allows the aqueous to drain more freely.
Iridotomy
uses a
laser to make a small hole in the iris - the colored part of the eye - which
allows the aqueous to flow more freely out of the eye so the iris doesn't plug
up the trabecular meshwork.
Cyclophotocoagulation
uses a laser beam to freeze selected areas
of the ciliary body - the part of the eye that produces aqueous - to reduce
the production of fluid.
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| Laser surgery for Diabetes |
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Diabetic Retinopathy is a condition
in which the small blood vessels in the eye can become blocked or leak causing
tissue damage to the retina, resulting in loss of vision. A patient
with diabetes has a twenty five times greater chance of developing serious
eyesight problems than a non-diabetic.
Diabetic patients need to pay close attention to their overall health to maintain
vision clarity and the health of their eyes. Two essential steps in eyesight
preservation are metabolic control--keeping glucose levels within the acceptable
range, and, control of hypertension--keeping blood pressure down.
Retinopathy is managed by either
focal or peripheral laser treatments to the eye.

Photocoagulation of focal diabetic maculopathy, before treatment,
(left), after treatment, (right)
Focal laser treatments - A
laser beam is used to treat localized swelling and to reduce leakage from
blood vessels.
Peripheral laser treatments
- When retinal tissue becomes ischemic (requires more oxygen), new blood vessels
form to meet the demand. These new vessels are fragile and are subject to
leakage and hemorrhage, causing vision loss. Pan-retinal photocoagulation
laser treatments are used to control bleeding and to reduce the amount of
oxygen the retinal tissue demands.
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| Eyelid procedures |
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The most common eyelid abnormalities
are those of eyelid positioning. Sometimes the eyelids can assume an outward
or inward turning of the lids. This can cause irritation to the eye in the
form of burning, scratchiness (foreign body sensation), redness, and tearing.
Managment consists of oculoplastic (surgical) repositioning of the eyelids
to alleviate symptoms.
Ptosis (drooping of the upper eyelids)
can cause blockage of one's vision and is displeasing cosmetically. Raising
the eyelids using surgery (blepharoplasty) allows for normal function.
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Back to top of Surgery page
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Phacoemulsification
- The process by which a cataract is removed from
the eye. An instrument is introduced through a small incision. The cataract
is reduced to fragments by ultrasound. The fragmented cataract is removed
by aspiration. This process allows for a smaller incision than would
be needed to remove the cataract if it were intact.
No-stitch
microsurgery -
The surgery used for phacoemulsification. The small incision allows
the procedure to be performed as an out patient and therefore does not require
a hospital stay. Healing is much faster and the incision is so small that
no stitches are required.
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