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The human eye is an optical device which functions similar to a camera. When light rays pass through the lens of the eye, it focuses the rays to the retina. The retina is a screen like part of the eye which has oillions of photo receptors. These receptors convert the image into electric impulse which are transmitted to the brain by the optic nerve.
The STAR S4 IR® Excimer Laser System features VSS technology (Variable Spot Scanning) and VRR (Variable Repetition Rate) pulse-packing algorithm, both proprietary to AMO. The VSS technology produces variable beam sizes from as small as 0.65 mm up to 6.5 mm, while VRR varies the laser's repetition rate from 6 Hz to 20 Hz. By continually changing the size and placement of the laser beam, the STAR S4 IR® Excimer Laser rapidly delivers the precise ablation pattern required, significantly reducing ablation time.
ActiveTrak 3-D Active Eye Tracking with automatic centering is the first FDA-approved tracker in the industry to track eye movements along the X, Y and Z axes. These features facilitate the accurate performance of the Advanced CustomVue®procedure.