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VISX STAR S4™ Excimer Laser |
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| VISX laser systems have been used to perform
millions of laser vision correction procedures
in the U.S. and around the world. Every
year, more doctors use VISX lasers to perform
laser vision correction surgery than any other
system. The VISX STAR S4 is one of the
most advanced systems on the market today.
This technologically advanced laser offers
faster treatments using variable spot beam
technology and an eye tracking system that
tracks in all three dimensions. |
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| The VISX Star S4 can be used in combination
with VISX CustomVue™ to address the unique
imperfections of each individual's vision.
CustomVue can provide our patients with the
potential to experience better vision than is
possible with glasses or contact lenses. |
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Wavefront Technology and CustomVue™ |
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| Wavefront technology was
first developed in 1978 by Josef Bille, Ph.D.,
director of the Institute for Applied Physics at
the University of Heidelberg, to measure
wavefront distortions that occurred when light
traveling through the atmosphere entered a
telescopic lens. This technology removed any
visual distortion or aberrations from the
atmosphere allowing astrophysicists to more
accurately view images of the stars and planets. |
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| It is now possible to
utilize this technology to record detailed
information about the visual characteristics of
the eye. Unlike standard measuring devices such
as corneal topography, which measure the front
surface of the eye called the cornea, the
wavefront scans the way the entire optical
system processes light. Because each patient has
a unique visual optical system, the wavefront
data has been likened to a fingerprint. |
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| Once the wavefront data
has been documented for an individual patient,
the next step is to use this information to
utilize the excimer laser to correct the
higher-order visual aberrations. The surgeon can
then determine what adjustments must be made to
the corneal surface to produce a clear, crisp
image for the unique individual needs of each
patient. The use of wavefront technology to
provide a more precise laser vision correction
is known as, "Custom LASIK" or "Wavefront-Driven
LASIK". |
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Click here to go back
to the Frequently Asked Questions about LASIK |
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