Wavescan wavefront system
WaveScan Wavefront System
WaveScan technology was originally developed for use in high-powered telescopes to reduce distortions when viewing distant objects in space. 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 your eyes 25 times more precisely than standard methods. The powerful WaveScan software translates the information into a set of CustomVue treatment instructions for the laser. These digital treatment instructions are then transferred to the laser, driving a new level of precision and accuracy.
The VISX Fourier Wavefront Upgrade, has the ability to capture and treat wavefront information on larger pupil patients and utilize this data for optical zone treatments out to 7mm. Transition zones continue to be adjustable out to 9.5mm. WaveScan utilizes the patient’s corneal K-values and wavefront measurement to create the optimal corneal shape for each individual, whether it be prolate, oblate, or spherical.
The WaveScan Wavefront System provides:
- Fourier-based wavefront algorithms:
- Fourier delivers the highest resolution available of the wavefront error
- Uses more data points to derive the optimal shape
- Uses all data from any shape of pupil
- Accurately reconstructs all peripheral data
- Captures and treats higher and lower order aberrations up to 7 mm diameter pupil
- Acuity Maps®: Chart the optical aberrations of the eye.
- Difference Maps: Track the changes of the eye for pre-op and post-op comparisons.
- Point Spread Function (PSF): Demonstrates how a patient would see a point source of light
Registration + Resolution
The AMO WaveScan WaveFront System leads the industry for outstanding wavefront acquisition and diagnostic capabilities. Fast and powerful, the WaveScan System delivers unprecedented measurement accuracy, enhancing the precision of the Advanced CustomVue procedure.
Using AMO Fourier algorithms, WaveScan captures the unique imperfections of each patient's eye using 100 percent of the available Hartmann-Shack data points for more accurate wavefront error reconstruction. The system provides the highest resolution available for any shape pupil (up to 7 mm), enabling precise, individualized treatment for the broadest range of visual imperfections.
Additional Benefits
- Personalizes the Advanced CustomVue treatment for each patient according to the unique characteristics of his or her eyes.
- Allows you to link diagnostic information to laser treatment.
- Advanced features like off-line programming and auto exam selection improve workflow efficiencies.
Truly Personalized Vision Correction
The WaveScan WaveFront System uses intuitive software to help physicians determine the appropriate treatment with colorful, 3-D, easy-to-read Acuity Maps and difference maps. Physicians can choose from single or multiple exams for automated exam selection mode. First, the WaveScan System captures the wavefront, maps the aberrations, and automatically records picture quality for Iris Registration. Then it provides 3-D maps of acuity, higher-order aberrations, and point spread function (PSF), along with the captured eye image. Finally, the design screen provides a visualization of the calculated ablation depth and the eye image. The physician can easily make adjustments that further personalize treatment for the individual patient. By streamlining the steps between treatment design and delivery, the software enables greater practice efficiency.
The AMO Fourier Algorithm
Using 100 percent of the available Hartmann-Shack data points (about 240 points), the AMO Fourier algorithm delivers the highest available resolution of the wavefront error. Fourier algorithms use data from pupils of any shape, and reconstruct all peripheral data (data that lie beyond the circular data) unlike with the use of Zernike reconstruction. No dilation is necessary. The Fourier algorithm provides the most precise measurement of the wavefront error available today, and is equivalent to 20th-order Zernike measurements.
Guided by AMO Fourier algorithms, the WaveScan WaveFront System — together with the STAR S4 IR Excimer Laser System — allows you to calculate and deliver more precise ablation shapes.
WavePrintTM Map: A Finger Print of Your Vision™
The first step in laser vision correction is the creation of a WavePrint™ Map of the eye. Essentially a fingerprint of your vision, the WavePrint™ Map is derived from a precise and individualized measurement. During the diagnostic phase, the WaveScan WaveFront™ System creates this detailed map of each patient's eye, and this WavePrint™ Map is then used during the treatment phase to perform the vision correction.
The WaveScan WaveFront™ System, featuring Fourier algorithms, is an FDA-approved advancement in wavefront technology that delivers the highest available resolution of your wavefront correction. WaveScan™ technology – originally developed for use in high-powered telescopes to reduce distortions when viewing distant objects in space – has now been applied to laser vision correction, to identify unique imperfections in the eye. In fact, WaveScan™-based digital technology identifies and measures imperfections in a patient's eye 25 times more precisely than standard methods used for glasses and contact lenses. Physicians transfer this information (the WavePrint™ Map) to the laser to treat individuals with the Advanced CustomVue™ procedure.
This new level of precision provided by the WaveScan WaveFront™ System with Fourier algorithms overcomes the limitations of previous technology, delivering unprecedented resolution to ensure the most effective individualized advanced laser treatment available today: Advanced CustomVue™.