Intralase & Customeyes

Refractive technology – precision in eye care

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Intralase

Intralase is used during the LASIK procedure to create the flap before the refractive laser can be applied.
Unlike other procedures, the IntraLase Method creates the corneal flap by applying tiny, rapid pulses of laser light – not a metal blade (microkeratome). Each pulse of light passes through the top layers of your cornea and forms a microscopic bubble at a specific depth and position within your eye that is determined by the doctor. As the IntraLase or iFS Laser moves back and forth across your eye, a uniform layer of bubbles forms just below the corneal surface. Your doctor creates your corneal flap by gently separating the tissue where these bubbles have formed.
Because of the way in which the IntraLase Method creates a precisely positioned layer of bubbles just beneath the surface of your eye, it creates a smooth, even surface after your flap is lifted. The flap is then folded back so the doctor can perform the second step of your LASIK procedure.
The IntraLase Method flap creation process takes about 30 seconds per eye. Including preparation time, the entire LASIK procedure typically takes about 10 minutes. Once the entire procedure is completed, the corneal flap “locks” back into position.

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Customeyes & Wavefront technology

Customeyes allows the treatment to be totally customised to your eye.
It analyses the way your eye focuses light and adjusts the laser to treat every individual imperfection in your vision.
Customeyes technology is of most benefit to people with astigmatism, hyperopia or particularly thin corneas.

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How the laser works

The Technolas 217z is the latest state of the art excimer laser system made by Bausch & Lomb Surgical. It is equipped with cutting edge technology and is capable of performing all current laser techniques including Wavefront Guided LASIK (Zyoptix or CustomEyes). There are more LASIK procedures performed worldwide with Technolas lasers than any other system.​

The excimer laser produces radiation in the ultraviolet range at a wavelength of 193nm. Radiation of this wavelength is absorbed by human tissue and breaks the bonds between molecules. The tissue is vaporised and the process is called photoablation. This process is non-thermal and there is no burning of the corneal tissue.​

A thin layer of tissue can be vaporised with each pulse of energy in a very precise way. A computer controls the delivery of the laser and with multiple pulses the central cornea can sculpted to change the curvature and power. With each pulse, 0.25 microns of corneal tissue is removed. The removal of 10 microns is required to correct one dioptre of refractive error. The average corneal thickness is about 520 microns.