Emil William Chynn, MD, FACS, MBA and Park Avenue LASEK were chosen by VISX to launch the 1st Hi-Def, CustomVue, WaveScan procedure for Monovision in NYC (in 2009). This is because Dr. Chynn and PAL have performed more Hi-Def LASEK procedures for monovision than any other surgeon/center in NYC--combined!
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Hi-DefTM SafeSightTM Procedure - Advanced WaveScan by VISX / Emil Chynn, MD / Park Avenue LASEK
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The Advanced CustomVue procedure will be Powered by iDesign,*
giving you a truly innovative approach to measuring refractive errors.
The iDesign system enables:
Five Measurements Within a Single Capture Sequence
u Five sets of ocular measurements within a single capture sequence maximizing patient throughput —
auto-refraction, wavefront aberrometry, topography, keratometry and pupillometry
u Within a 3-second single acquisition sequence, the instrument obtains four different measurement
frames, which allows for absolute registration, including eye motion and pupil shift
u Computer and monitor are built into the system
High-Definition Sensor For Maximizing Capture Rates
of Highly Aberrated Eyes
u Higher-Definition (177 µm) Hartmann-Shack wavefront sensor used for aberrometer
measurements and diagnostics
u Fourier algorithms utilizing up to 1,257 micro-refractions over a 7-mm pupil
u Higher-Definition provides outstanding accuracy and ability to measure complex wavefronts
* Treatment planning capability not available pending CE mark approval.
3. Full Gradient Corneal Topography Technology
u Topography coverage > 8.3 mm surface area with true central 3-mm data
u Registered topography to accurately access both cornea and the wavefront refractions
Precise Alignment for More Accurate, Customised Measurement
u Wavefront Fourier analysis equivalent to the 16th-order term
u The wavefront aberrometry and topography are acquired during a single capture for greater precision
and alignment accuracy
u Enhanced Iris Registration algorithms
u Improved technician ease of use through an enhanced graphical interface with alignment aids and
onscreen tools
Suitable for a Range of Errors and Pupil Sizes
u High dynamic-range aberrometer: -16 D to +12 D of sphere with up to 8 D of astigmatism
u Ability to acquire patients with pupils up to 8.5 mm
u Ability to acquire highly aberrated corneas with improved detection of various corneal abnormalities
Innovative Measurement Features
u Advanced video target aids patients during acquisition and further reduces patient accommodation
u Automatically adjusted pupil illumination enables detection of pupil centroid and pupil centroid shift
during acquisition for different lighting levels
u Enhanced ease of use — wavefront measurements can be obtained using a broader range of focus
positions; sensitivity to centration has been minimised
u Iris/limbus registration means that all data is accurately registered together
u System also provides mesopic and photopic pupil size measurements
Corneal Alignment Corneal Topography Elevation Higher-Order Aberrations Corneal Topography
Axial Power