| This is one of the most significant developments
in the field of eye surgery over the last 20 years. The excimer
laser is an ultraviolet laser capable of breaking the molecular
bonds of the corneal tissues by ablating them in a cool manner
so minimal heat is generated.
The laser unit is computer controlled and so precise that it
can remove less than a micron (one one-thousandth of a millimetre)
of corneal tissue with each pulse. The computer software allows
us to calculate with micro precision the number of pulses required
to correct a specific refractive error by sculpting and reshaping
the cornea. (In the case of myopia, reducing the steepness of
the cornea, and in the case of hypermetropia, increasing the
steepness of the cornea).
The computer also incorporates a tracking system that can follow
the slightest eye movement and maintain precise laser pulse
placement throughout the treatment.
(see Technology section for further
details)
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