No-needle, No-stitch Cataract Surgery
Dr. Douglas Liva performs cataract surgery with some
of the latest techniques and most up-to-date technology
available, including the AquaLase® lens removal
system and ReSTOR® intraocular lens (IOL) replacements.
A cataract
is a clouding that occurs on the lens of the
eye - usually as a natural part of the aging process.
Cataracts are a major cause of vision loss in
the United States, and most people will eventually
experience some cataract formation age they get
older. The good news is that cataract surgery
is a highly effective way to restore vision impaired
by cataracts.
In an eye without
cataracts, light passes first
through the clear lens before being focused on
the retina (nerve cells at the back of the eye).
The image formed on the retina is then transmitted
to the brain. Cataracts interfere with this normal
visual process. Cataracts make the lens of eye
cloudy, so light does not focus on the retina
properly. The result is hazy, milky, or distorted
vision.
The term “cataract” is applied to a natural
eye lens that has become clouded, either as part of
the aging process or as the result of excessive exposure
to ultraviolet light. Cataracts are a major cause of
vision loss in the United States, and most people will
eventually experience some cataract formation as they
get older. The good news is that cataract surgery is
a highly effective way to restore clarity to vision
impaired by cataracts.
In an eye without cataracts, light passes first through
the clear lens before being focused on the retina, a
tissue of nerve cells at the back of the eye. The image
formed on the retina is then transmitted to the brain.
Cataracts interfere with this normal visual process,
making the lens of eye cloudy so that light cannot focus
on the retina properly. The result is hazy, milky, or
distorted vision.
AquaLase® for Gentle, Safe Lens Removal
Dr. Liva performs stitchless cataract surgery with
the help of the AquaLase® liquefaction device. The
first step in cataract surgery is to remove the clouded
lens. To avoid possible complications, including rupturing
the membrane that holds the lens, Dr. Liva can use fluid
micropulses from the AquaLase® to gently and accurately
break apart and flush out the lens without damage to
surrounding eye tissue. A replacement IOL is then inserted
through a tiny incision and placed in the membrane from
which the natural lens was removed.
Until recently, cataract surgery patients were given
IOLs that provided good distance vision, but they continued
to require glasses for near vision. This is because
the muscles that compress the natural lens to provide
near-vision focus cannot be attached to replacement
IOLs. It is the varying thickness of the natural lens
that provides focus at different distances.
ReSTOR® IOL for Improved Range of Vision
The ReSTOR® IOL changes all that. Instead of the
flat surface of traditional IOLs, the ReSTOR® has
a stepped surface, from thin at the outer edge for the
most distant vision, to thick in the center for the
nearest vision. This design focuses light from several
different distances onto the retina at the same time.
For most patients, the ReSTOR® IOL will eliminate
the need for glasses in most situations. Some patients
may still need glasses, but will be pleased to find
that, in most cases, the prescription is very mild.
No Needle, No Stitches
Both the removal of the clouded natural lens and the
implantation of the replacement IOL are accomplished
through tiny incisions no more than 2.75 millimeters
in length. Incisions this small will easily heal without
the need for stitches. Dr. Liva will provide eye drops
to reduce irritation and guard against inflammation
and infection during the healing period.
Refractive Lens Exchange
The advances in cataract surgery have led to refractive
lens exchange, the replacement of lenses that have not
yet developed cataracts but suffer from moderate to
high refractive error.
Just as with cataract replacement surgery, refractive lens exchange with standard IOLs provides excellent distance vision, but patients will still require glasses for near vision.
The benefits include stable
adjusted vision that exceeds preoperative vision, the
elimination of the eventual need for cataract surgery,
and the preservation of the central cornea for those
patients for whom LASIK surgery is not appropriate.
As with cataract surgery, refractive lens exchange with the ReSTOR® IOL
improves the outcome, eliminating or significantly reducing
the need for glasses.
Limbal Relaxing Incisions
In cataract patients with astigmatism, Dr. Liva may
suggest limbal relaxing incisions (LRI) as part of the
surgery, to reduce astigmatism after implantation. These
tiny incisions, radiating outward beyond the outer edge
of the cornea, can effectively change the shape of an
astigmatic eye. With the combination of IOLs and the
LRI procedure, astigmatic cataract patients can expect
the same reduction in the need for glasses as the cataract
patient who had good vision before developing cataracts.
Contact the office of Dr. Douglas
Liva today to learn more about cataract surgery, refractive
lens exchange, and limbal relaxing incisions.
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