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Microkeratomes are the tools with a
special blade used in LASIK surgery for preparing flap .
The required flap is prepared by moving on cornea and cornea
laser surgery is applied.
The most important and hazardous part of LASIK surgery is
the preparation. |
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Femtosecond lasers are lasers
developed for flap preparation part of surgery which is the most
critical one. They achieve flap removal by replacing keratome
without any incision. |
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Femtosecond laser pulses made
without touching cornea create laser spaces with a depth of
1 micron.
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The laser shots made
consecutively in 1/quadrillion of a second, are seen as
laser points together.
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Laser points vaporize the
tissue by creating water and bubbles and forms a linear flap
opening in a width of 2/1000 of a milimetre. This opening is
thinner than the incision made with blade and like a
separation giving less harm to the tissue.
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LASIK operation is performed.by
easily removing cornea flap from this separation place.
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The improvement and correction
of vision takes a very short time since the tissue damage is
very little.
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Since femtosecond laser can
affect cornea in the desired depth and shape, it is used not
only for preparing LASIK flap but also for various surgeries
planned within cornea tissue.One of the most successful
operations is the Intacs surgery performed on patients with
keratoconus.
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Intacs
surgery can be performed in a few minutes with femtosecond
laser.
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