WaveMaster® IOL 2 - Mapping of Intraocular Lenses Using Wavefront Measurement
Based on wavefront analysis WaveMaster® IOL 2 measures key parameters of refractive monofocal and toric, spherical or aspherical intraocular lenses using the WaveSensor®, TRIOPTICS’ well established Shack-Hartmann sensor. Thus, it is used in research and development as well as in production. Measurement parameters like the refractive power, aberrations and modulation transfer function are calculated by analyzing the wavefront which is obtained in a quick measurement process. Additionally, fully automated measurement of toric lenses (MTF in both meridians, marker recognition) is supported. All aspects of the measurements in-air or in-situ are arranged in a new intutuitively usable interface that guides the user through the process.
The WaveMaster® IOL 2 with single lens holder for measurement of IOLs in-air
Key Features:
- Multi-purpose measurement system for quality control of all common refractive intraocular lenses: monofocal, toric, spherical and aspherical
- Wavefront measurement permits complete power mapping
- Power measurement with accuracies as low as one third of the allowed tolerances stated in ISO provide confidence in target achievement.
- Measurement of hydrophobic and hydrophilic lenses in air or in the optionally heatable in-situ eye model as per ISO 11979
- Fully automated and user-independent determination of lens refractive power (sphere and cylinder), aberrations, MTF (also for toric samples), PSF and toric axis deviation
- Zernike fit with user-specific coefficients, analysis of the detected wavefront in real time and display of the results in numbers and graphics
- Automated MTF measurement in both principlal sections of toric IOLs
- Fully automated determination of axis deviation for toric lenses between the optical and the marked toric axis
- Integrated live camera for marker recognition and visual inspection with respect to the lens’s manufacturing quality
- Mask diameters adjustable to specific samples in accordance with required resolution and dynamics
Applications
Analyzing the wavefront of an IOL for testing the quality and measuring the key parameters of IOLs by using Shack-Hartmann technology
Measurement Of:
- Wavefront of monofocal and toric lenses in-air or in-situ
- Refractive power (sphere, cylinder)
- Lens aberrations of lower and higher orders (Zernike analysis)
- Modulation transfer function (MTF)
- Point spread function (PSF)
- Strehl ratio
- Toric axis deviation and marker orientation
Lens holder on positioning table
Videos:
WaveMaster® IOL 2 Software
The WaveMaster® IOL 2 is supplied with a new and user-friendly software. All aspects of measurement, from setting up the sample and the measurement process, through data calculation and analysis to data presentation, are arranged in a new intuitively usable interface that guides the user through the process. Individual measurement procedures optimize IOL testing
WaveMaster® IOL Software for multiple measurement
Key Features:
- Depiction of wavefronts in 2D
- Full documentation of measurement results
- Correction of measurements from environmental impact or variances in sample handling by subtraction of background light
- Reduced work required for repeated measurements of the same lens type due to storage of specific measurement settings
Extended analysis through Software Modules
Additional software modules are available to extend the possibilities for user-defined analysis to specific demands:
ZERNIKE analysis module
- Zernike fit and analysis of wavefront files in real time using user-specific coefficients
- Numerical and graphical display of fit results
- Import of wavefront design data from ZEMAX and CODE V for real-time comparisons
- Export of wavefront data and analysis results to ASCII and ZEMAX format
MTF/PSF analysis module
- Real-time calculation and display of 1D and 2D MTF and PSF
- Table containing MTF measurement results
- Export function for measurement results
- Calculation of Strehl ratio
- User-specific analysis angels
Results based on measured or fitted wavefront
WaveMaster® IOL Software with Zernike analysis
| Measurement method: | Wavefront analysis |
| Aperture diameter*: | 2.1 mm ... 5.9 mm |
| Wavelength**: | 532 nm optional: 546 nm |
| Wavefront accuracy: | < λ/20 (RMS) |
| Wavefront repeatability: | < λ/200 (RMS) |
| Power range***: | Spherical Equivalent: +21.3 D ... +125.1 D optional: +8.0 D ... +125.1 D Cylinder: 0 D ... +28.5 D |
| MTF range***: | +21.3 D ... +125.1 D |
| Max. batch size: | Single seat |
| Sample positioning: | Manual positioning |
| Automated toric marker detection: | Yes |
| Additional options: | Model Eye (optionally heatable) |
* Depending on imaging optics
** Other wavelength upon request
*** Measured and labled in-air or measured and labeled in water, measured with 3 mm aperture
Upgrades & Accessories
- All sensors from the WaveSensor® series for increasing the dynamic range or higher resolution
- Light sources with different wavelengths and numerical apertures, e.g. upgrade for 546 nm
- Different telescopes for evaluation of various aperture diameters
- Lens holders with various aperture sizes
- Model eye, optional heatable
- Exchangeable model Cornea for model eye
- Corneas of various designs, e.g. with spherical aberration
- Upgrade for toric lenses (automated marker detection, simplified measurment of MTF, visual inspection)
- Extension of the measurement range
- Software modules for Zernike Analysis and MTF/PSF analysis
