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Laser Technology

WaveLight® EX500 Excimer Laser
This excimer laser by Alcon is a flying spot laser that delivers treatment at 500Hz, with an average treatment time of approximately 1.4 seconds per diopter. It sculpts and treats refractive errors following flap creation by the femtosecond laser.

Faster laser treatment improves the predictability and results of LASIK by reducing the problems of dehydration of the cornea during treatment, flap shrinkage, treatment sensitivity to patient's eye movement and fixation fatigue.

For safety and precision, the laser is coupled with a faster, 1050Hz multi-dimensional eye tracker that tracks horizontal, vertical, rotational and torsional movements of the eye. This excimer laser can also be linked to corneal mapping instruments like the topolyzer and oculyzer, enabling customised mapping of the corneal surface or the global mapping of the eye.

VISUMAX® Femtosecond Laser

The Visumax® femtosecond laser from Carl Zeiss Meditec is a new generation femtosecond laser platform designed for the creation of corneal flaps during LASIK.

Its repetition rate of 500kHz enables faster flap creation and uses lower energy levels, thereby reducing the amount of thermal energy delivered to the cornea. A specially designed spherically curved contact glass used during the procedure prevents an unnecessarily high rise in intraocular pressure and temporary vision loss during the procedure. The net result is a fast, safe and comfortable LASIK procedure.

AMO IntraLase™ iFS Laser System

This iFS laser system by AMO has a repetition rate of 150kHz, enabling corneal flaps to be created in just 12 to 16 seconds during LASIK. The lower energy levels used with this laser also reduces the risk of tissue burns and injury. With iFS, the flap dimensions are customisable based on patient factors, such as corneal thickness, diameter and pupil position.

Ziemer LDV Femtosecond Laser System
This system by Ziemer is another femtosecond laser for making LASIK flaps. It operates at low pulse energy (nJ) and short pulse width, but at high pulse frequencies (MHz). As a result, fewer gas bubbles are formed during flap creation and more tissue is preserved. The effect is quiet eyes which are free from edema post-surgery.

This high-speed system also allows generation of tightly focused low-energy laser pulses in an overlapped pulse raster, resulting in a complete and smooth re-section for easy flap lift, and faster visual recovery.