Refractive Surgery | Singapore National Eye Centre

Our Laser Technology

At the SNEC Laser Vision Centre, there is a constant quest to expand the range of refractive errors that can be treated, to improve the predictability and accuracy of the outcomes and to enhance the safety of the surgery. Our specialist team is always at the forefront of innovation, leveraging emerging laser technology to offer customised treatment for patients.

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.

Wavelight® FS200 Femtosecond Laser System

This efficient Wavelight®FS200 laser system provides a high repetition rate, creating flap with consistent thickness and a special cut pattern to minimize opaque bubble layers. With lower pulse energy, this system creates sharp cutting edges, smooth stromal beds and easy-to-lift flaps.