Intralase™ FS laser
The Intralase™ FS Laser provides an all-laser
approach to lasik surgery. It uses the laser to create
the corneal flap. Not only does it have a new level of
safety assurance but the computer-controlled laser
provides unprecedented control and the ability to
customize the flap for each of our patients.
Microkeratome has been used to create the corneal flap. This
is a mechanical, hand- held instrument that sometimes can
contribute to LASIK complications. Though the complications
are rare (1 in 2500 or 5000 cases) the Intralase™ makes
LASIK much safer by reducing the rare occasion of
IntraLASIK, is the term
used when the combination of Intralase™ is used in
conjunction with LASIK. Intralase™ uses a laser beam that is
focused into a small spot of energy. This energy passes
harmlessly through the outermost layers of the cornea until
it reaches the exact measurement within the corneal layer
needed to make the flap.
Researchers are exploring
the possibility of using the Intralase FS Laser in other
procedures, such as cornea transplants and glaucoma
Why the Intralase™ FS Laser:
- IntraLASIK is a safer procedure
that eliminates the potential of complications from
- IntraLASIK allows correction of higher refractive errors
especially those with thin corneas because of the ability to
make precise shallow flaps.
- IntraLASIK significantly adds precision and predictability
by using an all laser procedure.
- IntraLASIK creates a better fitting flap, when put back
into place form a tighter seal. This makes dislocation after
the procedure more difficult.
- IntraLASIK is painless and a more comfortable procedure
because there is less pressure placed on the cornea than
with the laser Vsvs mechanical microkeratome.
Visx Waveprint™ System
No two people are the same. Like your
DNA or your fingerprints, your eyes are unique. Previously,
laser vision correction treatment was based on diagnostic
technology that has been used for prescriptions of contacts
and sunglasses. The new Waveprint™ system by VISX takes a
step up in laser vision correction technology, by combining
personalized diagnostics and the Excimer laser into one
This advanced diagnostic
portion of the technology produces a precise, detailed
analysis of you vision, providing a personalized correction
to each individual. This Waveprint Map is interfaced with
the VISX STAR S4 Active Trak™ Excimer Laser System to create
one of the most advanced systems on the market. Also the eye
tracker adds an advanced level of precision and safety.
Why choose the VISX Waveprint™ System:
- VISX Waveprint
System consists of a diagnostic apparatus that maps the
entire optical path of the eye. The Waveprint™ Map is called
the “fingerprint of your vision” and gives the doctor exact
and detailed information about your vision that will be used
to personalize your treatment.
- The Waveprint Map reveals the way the entire optical
system processes light. It provides more information than
just the corneal surface of the eye. It also provides a new
level of diagnostic information that was not available in
- The Waveprint Map allows doctors to more accurately access
whether patients are good candidates or not.
- VISX’s Active Trak™ allows the doctor to track any eye
movement and keeps the beam centered correctly on the eye at
all times which helps ensure precise results.
- ActiveTrak requires no pupil dilation, unlike other
lasers, leading to a quicker recovery time.
- VISX Star 4 laser produces seven different sized beams
which gives the doctor greater flexibility and more precise
corneal shaping. The technology adjusts the beam size
according to the treatment which minimizes corneal tissue
- The VISX laser produces an extremely smooth surface on the
cornea after the procedure which allows for faster healing
time and better results in your vision correction.
- VISX laser systems also reduce problems with night vision
by achieving an optical zone. The VISX laser also requires a
shorter procedure time which gives more comfort to the
patient and may reduce the risk of postoperative
Wavefront Diagnostic Technology
In the past laser vision technology
has always treated patients by using their optical
prescription. Meaning if you were a minus-three prescription
your glasses and laser vision correction would be programmed
to a minus-three neutralizing your script to a zero. This
would be the only available correction, one that every
minus-three patient would receive. This is conventional
Exiting news!! Today with
the introduction of wavefront diagnostic technology our
wavefront guided excimer laser is able to treat patients
according to each individual prescription.
How Wavefront Works:
Originally Wavefront technology was developed
in the field of astronomy and physics to help in reducing
aberrations of imperfections in the optical systems of
telescopes. Now using this same technology it is possible to
produce an accurate picture of the optical imperfections
found in the human eye. Wavefront enables us to measure the
entire optical system of the eye; where before only the
front surface of the eye could be tested.
Light travels in a
procession of flat sheets known as wavefronts. These
wavefronts enter the eye then pass through the optical
system. This system consists of the cornea, lens and retina.
They then are reflected back to the front of the eye. When
this system is in perfect working order the wave fronts exit
the eye as flat sheets. When there are irregularities in the
cornea or the lens, they are called (high order) aberrations
and the wavefront exits the eye in irregular curved sheets.
captures the reflected wavefronts and compares these curved
sheets to a perfect wavefront and a 3-D map of the eye’s
optical irregularities is created. The cornea is then
reshaped using the 3-D map that was transferred to the
excimer laser, thus an individual correction can be
results have shown a decrease in some of the unwanted side
affects that are sometimes associated with conventional
laser vision correction such as night vision glare and
halos. This technology can potentially give patients 20/20
vision or better by combining the prescription correction
with their high order aberrations correction.
The cornea is responsible for 70
percent of the eye’s focusing power known as “the front
window of the eye”. Corneal topography creates a
three-dimensional map of the cornea. An eye with normal
vision has an evenly rounded cornea. Patients with irregular
vision often either have too flat, too steep or unevenly
curved corneas. Corneal topography can detect this by
producing a detailed, visual description of the cornea. They
are also used to diagnose and monitor various eye
conditions. Corneal topography is used with other tests to
determine exactly how much corneal tissue can be removed
during laser vision correction procedures. Just like a
topographic map of the earth shows changes in the land
surface, this test uses different colors to identify
different elevations and the shape of the cornea. This
non-contact test is painless and brief.
Excimer Laser Technology
For over 25 years patients with vision problems have been
treated by doctors using procedures such as Radial
Keratotomy and Astigmatic Keratotomy. By the early 1980’s
researchers soon began to look for lasers to improve the
precision and outcome of these procedures. They found that
the IBM’s laser that was initially used for etching computer
chips was also available to be used medically as well. The
Excimer laser is now used and adds a tremendous amount of
precision, safety and control to treating patients with
nearsightedness, farsightedness and astigmatism. With each
pulse the Excimer laser removes up to 0.25 microns (0.00004
of an inch) of corneal tissue. Usually only 50 microns
(about the thickness of a hair) of corneal tissue is removed
to achieve the proper amount of correction. A “cool” light
beam is produced by the Excimer laser that does not damage
surrounding tissue. The laser produces high-energy photons
that then break the molecular bonds a few layers at a time.
Dr. Rahmani at the Rahmani Eye Institute has invested in
several Excimer lasers so that he can match the unique
capabilities of each laser to the specific needs of each
VISX STAR S4™ Excimer Laser System
laser vision correction procedures in the U.S. have been
performed using the VISX laser systems. More surgeons
use VISX lasers to perform laser vision corrections
surgery than any other systems. The VISX STAR S4 is one
of the most advanced systems on the market today. This
advanced technology offers faster treatments using
variable spot beam technology and an eye tracking system
which tracks in all three dimensions.
The VISX STAR S4 can be
used in combination with VISX CustomVue software, to aid in
the correction of the unique imperfections of each
Why we’ve chosen the VISX STAR S4 Excimer Laser System:
- The STAR 4 beam technology
allows the surgeon to treat patients with distinct laser
beam sizes and shapes, which are determined by each
patient’s visual needs.
- The VISX technology allows modification of beam size
according to treatment, minimizing the amount of corneal
tissue that needs to be removed.
- With eye-tracking technology, the lasers extreme accuracy
can distinguish and counterbalance for small eye movements
by guiding the laser beam to keep it centered precisely over
the treatment area. Therefore, centralizing the beam
appropriately on the eye helps ensure accurate results.
- VISX laser systems produce an exceptionally smooth surface
on the cornea following the procedure. Smoother ablations
promote quicker healing and result in better visual
- Unlike other laser technology with eye tracking systems,
this treatment requires no pupil dilation, resulting to a
quicker recovery time.
- VISX laser system has the ability to accomplish an optical
zone that may result in reduced problems with night vision.
- VISX laser systems entail a shorter operative time than
many lasers, which promotes comfort and therefore the risk
of postoperative complications of marginal.