Perfect Centration

Using a fine laser beam at high speed, the WaveLight laser systems rely on their synchronous, video-based, active eye-tracker to follow even the fastest eye movements with a response time of less than 6 ms.

As a pupil-based system, it tracks pupils between 1.8 and 8 mm, while the automatic centering mode ensures perfectly centered ablations.

The closed loop tracking mode reconfirms the eye‘s location again before a pulse is placed on the cornea to ensure that every pulse goes into the desired location.

To monitor the patient‘s eye, the active eyetracker utilizes three infrared light sources to clearly detect the contrast between pupil and iris. Being infrared, the eye-tracker is not distorted by the operation field illumination.

The illumination sources are independent, meaning that the tracker will continue to work even if one of the pods is covered by the surgeon‘s hand or a sterile drape; and the gooseneck shape of the illumination pods prevents backscattering of surgery.

In addition, the eye-tracker offers the possibility to determine the center of ablation on an individual basis.

This means better results with hyperopia treatments or in eyes with a displaced optical axis (compensating the angle kappa).

A dialation of the patient´s eye is not required.