VISX STAR S4 ActiveTrak™
Excimer Laser
Laser vision correction has revolutionized vision care. Common vision problems that cause one to be nearsighted, farsighted and/or suffer from astigmatism, can actually be treated. Variable Spot Scanning (VSS) is an exclusive VISX® laser technology that allows for a larger treatment area. This offers greater flexibility in developing a more personalized laser vision procedure, when pupil size may be a consideration.
In the early 1980’s, VISX, INC. developed the first Excimer laser designed to improve the precision and predictability of altering the shape of the cornea over the previous technique (RK) that used incisions. We use the newest generation VISX STAR S4 ActiveTrak™ Excimer Laser System that incorporates variable beam technology with an active eye tracking system.

The ActiveTrak™ continuously positions the laser beam precisely on the eye throughout the procedure. It is the only 3D tracker that is capable of tracking all eye movements (side-to-side and up and down) and there is no need to dilate the pupil.
This assures accurate placement of the beam, helps our patients feel more at ease during treatment and allows patients to appreciate their improved vision much quicker. The VISX STAR S4 variable beam technology provides faster treatment times, a smoother surface, and allows the surgeon to shape the beam to meet each patient’s individual correction need.
