Nidek OPD-Scan III – Refractive Power/ Corneal Analyzer – Used

Description

The Nidek OPD Scan III is a comprehensive diagnostic tool that offers a range of features and benefits for ophthalmologists. One of the most notable features of the device is its ability to measure corneal topography, which helps to identify irregularities on the surface of the cornea that can impact vision.

The device also offers a range of wavefront measurements, which help to identify aberrations in the eye and guide the selection of appropriate corrective lenses. The Nidek OPD Scan III also offers high-resolution imaging capabilities, allowing ophthalmologists to capture detailed eye images for diagnostic and documentation purposes.

The device can also detect irregularities in the cornea that may impact vision, such as corneal ectasia, keratoconus, and irregular astigmatism. The Nidek OPD Scan III can also assess the eye’s overall health, including the lens and retina, and monitor changes over time.

Nidek OPD-Scan III Intelligent Technologies

Over 20 diagnostic measurements are acquired in 10 seconds. Easy alignment and automatic capture of data ensure accurate readings. Wavefront data is gathered from available zones up to a 9.5 mm area, adding the capability to calculate mesopic refractions. Blue light, 33 ring, placido disc topography is collected in one second.

Options to View Data include:

Axial	PSF (Point Spread Function)	Eye Image
Gradient	Zernike Graph	Comparison maps
Instantaneous	Contact lens summary	Difference Maps
Numeric K display	VA-ETDRS simulations	Internal OPD

Nidek OPD-Scan III Unique Features

Cataract and refractive surgeries have now been taken to another dimension. Detailed patient summaries are available in just a matter of seconds. Pre-op toric axis alignment can be mapped to the iris or other physical landmark positions. Retro illumination images can be used post-op to verify IOL axis alignment.

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

Nidek OPD-Scan III Day and Night Wavefront Refractions

Pupillometry measurements are utilized to calculate separate wavefront refractions at 4mm and 6mm pupil sizes (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 to understand why they cannot achieve 20/20. Welcome to the next generation of refractive eye care.

Available Data Displays include: Axial Map OPD Map Internal OPD Map Eye Image with Pupils Wavefront Zernike Graph Point Spread Function Visual Acuity Simulation Retro Illumination

Captured in 10 seconds Corneal SA for Aspheric IOL Selection Lenticular – Residual Astigmatism Angle Kappa, Angle Alpha 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 Tilt Eye Image or Decentration

Nidek OPD-Scan III: Multi-Modality Functions

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

Functional Highlights

• 10 seconds eye measurement
• Auto Alignment
• Auto tracking
• Auto capture
• Electronically adjustable chinrest
• Touch screen keyboard
• Verification after each measurement
• Easily integrates with EPIC and TRS-5100

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

OPD-Scan III Specifications

Power Mapping
Spherical power range	-20.00 to +22.00 D
Cylindrical power	0.00 to +-12.00D
Axis	0 to 180 deg.
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 refractions (dynamic skiascopy)
Mapping methods	OPD, Internal OPD, Wavefront maps, Zernike graph, PSF, MTF graph
Corneal Topography
Measurement rings	33 vertical, 39 horizontal
Measurement area	0.5 to 11.00 mm (r-7.9)
Dioptric range	33.75 to 67.5 D
Axis range	0 to 359 deg
Data points	More than 11,880
Mapping methods	Axial, instantaneous, “Refractive”, Elevation, Wavefront maps, Zernike graph, PSF, MTF graph
General Information
Working distance	75 mm
Auto tracking	X-Y-Z directions
Observation area	14 x 11 mm
Operating System	Windows 10 embedded
Display	10.4-inch color LCD touch panel
Printer	Built-in thermal type line printer for data print External color printer (optional) for map print
Power supply	100 to 240 Vac 50/60 Hz
Power consumption	110 VAC
Dimension /Mass	286 (W)x525(D) x 530(H) mm / 23 kg

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