Brand: NIDEK


The NIDEK OPD-Scan III provides comprehensive information for pre-operative assessment and post-operative investigations.

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The new NIDEK OPD-Scan III is the latest diagnostic/refractive instrument that serves the practice as an autorefractor, keratometer, pupillometer, corneal topographer and wavefront aberrometer.

Featuring 2520 aberrometry measurements, over 11,000 topography measurements, photopic and mesopic pupillometry, lenticular retroillumination, a toric lens planning tool, and visual simulations replicating photopic or mesopic conditions.

A new interactive graphic interface summarises the information in comprehensive summary screens. Summary screens can be customised to include information specific to the application.


  • Five-in-One Vision Examination: The unique OPD-Scan III is an advanced vision assessment system that combines topography, wavefront, automated refractor, keratometry, and pupillometry.
  • Detailed Patient Summaries: The OPD-Scan offers multiple map summaries to suit you practice or clinical requirements with easy-to-understand patient reports and even more details for comprehensive vision analysis.
  • Enhanced Measurement Accuracy: 33 blue placido mires provide a minimum of 11,880 data points which is more than 170% of the OPD-Scan II. The blue wavelength allows greater precision in ring detection. The reduced illumination creates a comfortable patient experience.
  • Final Fit Software: The optional Final Fit software evaluates and converts the OPD-Scan III’s refractive and topographic data to produce the precise customized ablation parameters for the NIDEK EC Quest Excimer Laser System.


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 < 10 seconds
Measurement Method Automated objective refraction (dynamic skiascopy)
Mapping Methods OPD, Internal OPD, Wavefront maps, Zernike graph, PSF, MTF graph, Visual Acuity
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
Working Distance 75 mm
Auto Tracking X-Y-Z directions
Observation Area 14 x 11 mm