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PRK
Laser Vision Correction procedure using the same excimer laser treatment,
performed just under the transparent outer layer of the cornea.
There is no flap; therefore, no blade is used.
CELT™
 Over
years of surgical and clinical experience, our doctors noticed that
some patients undergoing standard LASIK developed more side effects
due to the unique characteristics of their eyes. These characteristics
needed special care. CUSTOM-EYE LASIK TECHNIQUE (CELT)™ was
designed to address those special characteristics so that all eyes
undergoing laser vision correction can achieve the same quality
vision we all expect from LASIK.
CELT™ is a customized form of LASIK. Our doctors design a
unique pattern of laser treatment based on special measurements
of YOUR eyes not usually used in standard LASIK. The pattern is
designed to maximize the amount of corneal tissue preserved for
the greatest visual stability. The technique may help to minimize
the chance you may experience glare at night.
CELT: Frequently Asked Questions
Is there any disadvantage to CELT™ vs LASIK?
The eye examination may take slightly longer and the surgery will
be a few seconds longer than standard LASIK. But, CELT™ is
as safe, as effective, and as pain-free as LASIK.
Do I need CELT™?
Those who are strongly recommended to chose CELT™ are those
whose eyes
· are very near-sighted
· have a thin cornea
· have unusually high degree of astigmatism
· have a larger pupil size
If your pupil is larger than the standard area of ablation (red),
light can enter your eye through untreated cornea, causing haloes
and starbursts around lights. This is especially obvious at night.
CELT™ is designed to match your eye’s specific needs.
(insert jpeg pupillarge and pupil small)
The laser treatment will remove small amounts of
cornea with each pulse. The higher the degree of myopia, the more
tissue needs to be removed. CELT™ can preserve tissue so that
the residual cornea will be thicker than with standard LASIK, resulting
in greater visual stability, quickly. (insert jpeg thin cornea)
E-LASEK™
LASEK (laser epithelial keratomileusis) is a
relatively new procedure that is technically a variation of PRK.
Also called epithelial LASIK or e-LASEK™, LASEK is used mostly
for people with corneas that are too thin or too flat for LASIK.
It was developed to reduce the chance of complications that occur
when the flap created during LASIK is not the ideal thickness or
diameter.
The e-LASEK™ Procedure
In e-LASEK™, the epithelium, or outer layer of the cornea,
is cut not with the microkeratome cutting tool used in LASIK, but
with a finer blade called a trephine. Then our doctor covers the
eye with a dilute alcohol solution for around 30 seconds. The solution
loosens the edges of the epithelium. After sponging the alcohol
solution from the eye, a tiny hoe is used to lift the edge of the
epithelial flap and gently fold it back out of the way. Then excimer
laser sculpts the corneal tissue underneath, as in LASIK or PRK,
Afterward, the epithelial flap is placed back on the eye with a
kind of spatula.
After e-LASEK™
In many ways, what you can expect from e-LASEK™, is similar
to what you can expect from LASIK, but there are some differences.
Patients usually wear a bandage contact lens for around four days.
You may feel eye irritation during the first day or two afterward.
Also, the time it takes to recover good vision is often longer —
up to four to seven days. Of course, it varies from one person to
the next. After a careful screening, our doctors can advise you
if this procedure is better for you.
Benefits of e-LASEK™ over LASIK
1. Without a stromal flap, more corneal
tissue is left for treatment. Thus, laser treatment is not limited
in size or depth. We are able to treat a broader group of patients
in whom LASIK may not possible, including those with thin corneas,
very large pupils, or high degree of nearsightedness.
2. More corneal tissue means greater visual
stability.
3. Those with small eyes can be treated
easily.
Benefits of e-LASEK™ over PRK
1. May have reduced risk of dry eyes post-op
2. More comfort after surgery.
3. The epithelial flap protects the stroma
& helps the healing of new epithelium underneath.
4. Lower chance of stromal haze
Zyoptix LASIK
 Until
now, standard laser vision correction has treated your prescription
(nearsightedness, farsightedness, and astigmatism), the so-called
low order aberrations. But this conventional approach to vision
correction does not analyze your complete vision from cornea to
retina, including the tear film. It does not take into account the
eye's so-called "higher-order" aberrations — that
is, the subtle variations of the eye that affect the quality of
your vision.
The latest advancement in LASIK technology, correcting not only
your focus problems, but adjusts for the entire visual system. Our
doctors use the Technolas® 217z Zyoptix™ System for Personalized
Vision Correction for wavefront-guided LASIK for correction of myopia
and astimgatism. The Technolas® 217z Zyoptix™ Wavefront-guided
laser integrates topography and the Zywave wavefront diagnostics
to deliver outstanding clinical outcomes.
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