Nidek OPD Scan III Wavefront Aberrometry
Nidek OPD Scan III Wavefront Aberrometry is a multiple-instrument device combining corneal topography, wavefront aberrometry, autorefraction, keratometry, pupillometry, and pupillography. The measurement of topography and whole eye wavefront allows separation of corneal and internal aberrations for rapid assessment of the refractive and optical effects of the cornea, physiologic lens, or an intraocular lens. The Daya Cataract Summary, the Cataract Summary, the Optical Quality summary, the Internal OPD, toric summary, and retroillumination maps are described.
Features :
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.
Measurements:
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
SPECIFICATIONS:
| 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 |












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