• Variable Spot Scanning (VSS): Variable beam sizes from as small as 0.65 mm up to 6.5 mm scanned over the treatment area, conserving tissue and optimizing treatment times
• Variable Repetition Rate (VRR): VRR delivers treatment at varying repetition rates, optimizing treatment time
• ActiveTrak 3-D Active Eye Tracking: Captures all 3 dimensions of intra-operative eye movements—no dilation required
• ActiveTrak Automatic Centering: Locates, and then automatically sets the treatment center of the pupil

Learn more about the VISX STAR S4 Excimer Laser System.

WaveScan Technology

With WaveScan technology, we can custom tailor a correction for the unique characteristics of each individual’s vision. WaveScan technology was originally developed for use in high-powered telescopes to reduce distortions in space, now adapted for eyecare. This technology has now been applied to laser vision correction, measuring imperfections in the eye never before measured using standard methods for glasses and contact lenses.  WaveScan based digital technology identifies and measures imperfections in an individual’s eye 25 times more precisely than standard methods.  Surgeons use this information to treat individuals with the CustomVue Procedure.

How WaveScan Technology works

A single beam of infrared laser light is passed into the eye and focused on the retina. The light is then reflected off the retina, passed back through the eye, through a lenslet array to a sensor, and then analyzed from 200 different aspects to create a map of the eye – or fingerprint of vision. This technology uncovers unique characteristics of the eye never measured before using standard methods for glasses and contact lenses.