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LASIK Up-to-date Newsletter
Femto-LASIK (Laser-LASIK): What is it? What are the advantages?
With the Femto-LASIK, also called Laser-LASIK or Intralase-LASIK, only
lasers are used. Therefore, the new procedure eliminates the use of
any mechanical instruments (microkeratome), which up to now were needed
to cut the corneal flap.
Rare complications resulting from the standard LASIK procedure could
almost always be traced to the preparation of the corneal flap. It was
therefore obvious to further develop the procedure, and to optimize
the preparation of the corneal flap.
The femto second laser that is used in place of the microkeratome for
the corneal cut, sends ultra-short light pulses with several 100 femto-seconds
(1 fs=a millionth of a billionth second). By accurately focusing the
laser beam, very high energy densities can temporarily be achieved in
the interior of the cornea. The effect of the photo disruption only
occurs in the focal point, i.e. the tissue is severed. Outside the defined
area, the tissue remains intact. A complete cut in a predefined level
is achieved by sequencing thousands of these laser pulses next to each
other.
The femto second laser is only used to prepare the corneal flap. For
the actual reshaping of the cornea that corrects the visual disorder
the Excimer laser is still being used.
Initial study results seem to indicate that by using the femto second
laser, the thickness of the LASIK flap can be defined even better than
with the conventional microkeratome.
In USA, more than 10,000 procedures have been performed with this
new technology. The femto scond laser is currently being introduced
in Europe.
FreeVis is offering the All-Laser-LASIK at the FreeVis centers
in Fürth, Lohr a. Main,
Mannheim, Munich,
Basel, Bern
and Zurich.
To learn more about the Femto-LASIK, follow one of the links below:
- What is Femto-LASIK, how does
it work?
- The Femto-LASIK FAQ
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