Marco OPD-Scan III Wavefront Aberrometer

Brand: Marco


The Marco OPD-Scan III is an autorefractor, keratometer, pupillometer, corneal topographer, and wavefront aberrometer, all in one compact device.

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The Marco OPD-Scan III is an autorefractor, keratometer, pupillometer (up to 9.5mm), corneal topographer, and integrated wavefront aberrometer. It can complete 20 diagnostic metrics in less than 10 seconds per eye (including angle kappa, angle alpha, HOAs, average pupil power, RMS value, and point spread function). Plus, easy and automatic alignment and data capture ensures accurate results.


  • Auto alignment, tracking, and capture
  • Detailed patient summaries
  • 10.4” LCD touchscreen display
  • Motorized chinrest
  • Software to view results in your exam lane
  • EMR/EHR integration


  • Corneal SA for Aspheric IOL Selection
  • Lenticular – Residual Astigmatism
  • Angle Kappa/Angle Alpha
  • Corneal coma for multifocal IOL qualification
  • Pre/Post Toric IOL Measurements
  • Pathologies (Keratoconus, Pellucid)
  • Mesopic/Photopic Pupil Size
  • Retro Illumination Image
  • Zernike Graphs: Total, Cornea, Internal
  • Corneal Refractive Power Map

IOL Applications

  • APP – Average Pupil Power for post myopic LASIK calculations
  • Angle Kappa, Angle Alpha
  • Corneal aberrations including corneal coma and spherical aberration
  • Pupillometry – photopic and mesopic pupils
  • Corneal topography
  • Placido Rings for detection of any ocular surface disease (OSD)
  • Zernike graph of total, corneal, and internal aberrations
  • White to white corneal diameter measurements
  • Retro illumination – displays post-op Toric lens markings, opacities, etc.
  • ECCP – Effective Central Corneal Power for IOL power calculation
  • Toric IOL summary to mark axis pre-op
  • Eye image can allow for marking the cornea based on landmarks
  • Cataract summary displays the pertinent data together
  • Point spread function graphs and VA simulation charts

Fast, Accurate Diagnostics

Over 20 diagnostic measurements are acquired in 10 seconds with the OPD-Scan III. Easy alignment and automatic capture of data ensures accurate readings. Wavefront data is gathered with 2,520 light vector data points from available zones up to a 9.5mm area, adding the capability to provide for calculation of mesopic refractions. Corneal topography is gathered across 11mm with 11,880 data point mapping. Blue light, 33 ring, placido disc topography is gathered in one second.

Data View Options

  • Axial
  • Gradient
  • Instantaneous
  • Numeric K display
  • Numeric power display
  • PSF (point spread function)
  • Zernike graph (including corneal)
  • Contact lens summary
  • VA-ETDRS simulations
  • Internal OPD
  • Eye image
  • Comparison maps
  • Difference maps

Unique Features for Cataract & Refractive Surgery

Detailed patient summaries are available in just a matter of seconds. Pre-op toric axis alignment can be mapped to iris or other physical landmark positions. Retro illumination images can be used post-op to verify IOL axis alignmen

Dysfunctional Lens Syndrome (DLS)

The map pictured is a measurement of a prior myopic LASIK patient with Dysfunctional Lens Syndrome (DLS). The Point Spread Function (PSF) maps show that the cornea is contributing to the problem, but the majority of the patient’s issue is lenticular change. The patient thought she needed another LASIK treatment, when in actuality, the lens has changed. A refractive lens exchange is recommended.

Day/Night Wavefront Refractions

Pupillometry measurements are utilized to allow for the calculation of separate wavefront refractions at 4mm and 6mm zones (or mesopic if smaller than 6mm). This provides information on the stability of the refractive error as pupil size changes, and the individual starting points for separate day and night refractions, if indicated. Your patients can receive a state-of-the-art printout of their ‘before’ and ‘after correction’ chart or understand why they are not able to achieve 20/20.

Specialty Contact Lens Partners

We have developed specific maps to directly order lenses from various specialty contact lens companies.


Power Mapping  
Spherical Power Range -20.00 to +22.00 D
Cylindrical Power 0.00 to ±12.00 D
Axis 0 to 180°
Measurement Area 2.0 to 9.5 mm (7 zone measurement)
Data Points 2,520 points (7 x 360)
Measuring time < 1.0 seconds
Measurement Method Automated objective refraction (dynamic skiascopy)
Mapping Methods OPD, Internal OPD, Wavefront maps, Zernike graph, PSF, MTF graph, Visual Acuity Corneal Topography
Measurement Rings 33 vertical, 39 horizontal
Measurement Area 0.5 to 11.0 mm (r = 7.9)
Dioptric Range 33.75 to 67.5 D
Axis Range 0 to 359˚
Data Points More than 11,880
Mapping Methods Axial, Instantaneous, “Refractive”, Elevation, Wavefront maps, Zernike graph, PSF, MTF graph, Visual Acuity General Information
Working Distance 75 mm
Auto Tracking X-Y-Z directions
Observation Area 14 x 11 mm