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In order to get
a precise treatment,
the laser beam must
be centered on
the eye.
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Our Technological Advances
Cataract Surgery, Lens Implants and LASIK
VISX 3D ActiveTrak
The ActiveTrak three-dimensional eye tracker is causing the most excitement
among the medical community and patients. The ActiveTrak with its dual aide
mounted infrared cameras continuously positions the laser beam precisely on
the eye throughout the procedure.
Without a tracking device, laser eye correction would require you to hold your eyes as still as possible during laser eye surgery. However, even a "still" eye makes minute, involuntary movements - including moving slightly with each breath.
Now, VISX 3D ActiveTrak follows the tiny motions of your eye instantaneously and automatically, in all three dimensions, repositioning the laser to ensure accuracy.
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There is no need to concentrate and try to hold your eye still as you must in other, non-tracking lasers. You don't need to worry about seeing the fixation light and keeping your eyes focused on it. |
ActiveTrak follows the tiny motions of your eye instantaneously and automatically
adjusts the laser beam. And, it is the only eye tracking laser to track your
eye in all three dimensions - up, down, and vertical. Eye position and speed
are checked at least six times before every pulse as compared to only 1.7 times
per pulse with radar tracking lasers. The three-dimensional capability that
tracks the x, y and z axis means that ActiveTrak follows not only the left and
right movements of the eye; it follows the up and down movements that can happen
when one breathes.
This is the only laser system that can capture all three dimensions of intra-operative eye movements without the requirement of pupillary dilation. There is no need to worry if your eye wanders. The ActiveTrak just slows down and waits for your eye to "straighten up" again before going on with the treatment.
The Importance of Tracking
Click on image to see video
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In order to get a precise treatment, the laser beam must be centered on the eye. Your results depend on it. If the eye goes too far away from the center, it is important for the laser to stop or slow down until the eye is properly aligned again. The VISX StarS4 laser
does this for you, unlike others that can't be stopped no matter
how far off center the eye becomes.
Being too far off center can cause elliptical
treatments that do not give ideal vision. The ActiveTrak prevents
this from happening, so you can truly relax, knowing that you're obtaining
a vision correction that's precisely centered on your eye.
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VISX ActiveTrak
