Products & Services

The WaveScan WaveFront System is an ophthalmic diagnostic instrument that measures the refractive error and wavefront aberrations of the human eye using a Hartmann-Shack wavefront sensor. The measurements can be used to determine regular (sphero-cylindrical) refractive errors and irregularities (aberrations) that cause decreased or blurry vision in the human eye. The WaveScan software uses the information to create a custom tailored correction map for the unique characteristics of each individual eye.

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

For more detailed information about how the WaveScan integrates with the VISX STAR S4 laser click here.

Principal Hardware Components

• PC, Monitor and Printer
  • Windows NT^® operating system
  • Pentium^® III processor
  • Flat-panel, LCD monitor
  • High-resolution color printer

• Isolation Transformer
  • Medical grade; IEC 601-1 compliant
  • Electrical ratings: 115/230 V, 50/60 Hz, 5.28/2.64 A
  • Fuse ratings: 115 V = 6.3 A, 230 V = 3.15 A

• Power Supply
  • DC power source for video cameras (CCDs) and superluminescent diode (SLD): 120 V~, 50/60 Hz, 20W

• Optical Head
  • Two optical units for the precompensation of sphere and astigmatism, adjusted by three stepper motors
  • Two CCD cameras and a light source (the SLD)
  • SLD incident power continuously monitored and switched off if defined threshold is exceeded
  • Class I Laser Product: 785 nm, 65 µW max
  • Physical dimensions (L, W, H): 18”, 13”, 24” (46, 33, 61 cm), including base
  • Weight: 42 lbs (19 kg)

• Motorized Table
• Rocker switch controls vertical position (range from 630 mm to 1030 mm).
• Tabletop holds PC monitor, keyboard and optical head.
• Shelves hold PC, printer, isolation transformer, and power supply.
• Electrical ratings: 120 V, 50/60 Hz, 6 A
• Physical dimensions (L, W): 49”, 29” (124, 74 cm); (H):adjustable 25” to 41” (64 to 104 cm)
• Weight: 149 lbs (68 kg)

 

 

 

Acuity Map® is a registered trademark of 20/10 Perfect Vision Optische Geraete GmbH
Windows NT® is a registered trademark of Microsoft Corporation
Pentium® is a registered trademark of Intel Corporation