Powered by the iDESIGN® System’s wavefront-guided measurements, the STAR S4 IR® Excimer Laser performs a customized treatment that includes the eye’s higher-order aberrations.

Exclusive technology helps ensure accurate placement of the laser according to surgeon specifications.

Iris Registration technology provides a noncontact, automated method to correctly align and center treatment while allowing for instant re-registration in the event of intraoperative movement Variable Repetition Rate (VRR) delivers Fourier-reconstructed shapes with optimized ablation time while minimizing thermal impact on the cornea Variable Spot Scanning (VSS) technology incorporates an array of varying laser pulse diameters to ensure an accurate match between target and ablation shapes ActiveTrak 3-D Active Eye Tracking technology follows the eye’s motions in three dimensions to capture more than 99.4% of eye movements ActiveTrak Automatic Centering technology locates and automatically sets the treatment center in relation to the pupil center

Proven Results

In a LASIK clinical trial, myopia patients reported significant improvements in ALL measures of visual functioning and well-being six months postoperatively, including:

Clarity of vision
Satisfaction with correction
Near vision
Far vision
Activity limitations
Difficulty driving at night