Description
The MediWorks AL550 is an automatic optical biometer developed for cataract surgery planning, intraocular lens power calculation and comprehensive anterior corneal analysis.
Its Optical Low-Coherence Reflectometry system uses a 1,060 nm wavelength to obtain axial biometric measurements. The longer wavelength provides strong penetration and supports a high measurement-success rate in cataract patients.
The AL550 combines axial biometry with 50-ring Placido topography. It analyzes up to 125,600 data points across the anterior corneal surface and can obtain up to 22 clinical parameters during a single measurement.
Key measurements include axial length, anterior chamber depth, central corneal thickness, crystalline-lens thickness, corneal curvature, white-to-white distance and pupil diameter. These parameters support IOL power prediction and refractive cataract surgery planning.
The integrated calculation software includes multiple IOL formulas, including Pearl-DGS, Jin, SRK/T, Holladay 1, Hoffer Q and Haigis. Availability of formulas should be confirmed for the selected software configuration.
In addition to cataract applications, the system provides keratoconus screening, anterior corneal wavefront analysis, visual-quality simulations, myopia progression monitoring and orthokeratology fitting functions.
Automatic XYZ tracking, autofocus, rapid capture, automatic eye recognition and voice prompts help standardize measurements and simplify the clinical workflow.
Key Features
- Non-contact optical biometry
- 1,060 nm OLCR measurement technology
- High penetration for cataract measurements
- Up to 22 parameters in one examination
- 50-ring Placido corneal topography
- 125,600 analyzed points
- 18,000 measured points
- Integrated IOL power calculation
- Multiple modern and conventional IOL formulas
- Axial length and anterior chamber depth
- Central corneal and lens thickness
- Corneal curvature and white-to-white measurement
- Keratoconus screening
- Wavefront-aberration analysis
- Visual-quality simulation
- Myopia progression monitoring
- Orthokeratology fitting
- Automatic XYZ tracking and focus
- Automatic OD/OS recognition
- Voice-guided operation
- Integrated 10.1-inch touchscreen
- Internal patient database
- PDF and image export by USB or network
IOL Calculation Formulas
- Pearl-DGS
- Jin
- SRK/T
- Holladay 1
- Hoffer Q
- Haigis
Formula availability and licensing can depend on the installed software version.
Additional Clinical Functions
Keratoconus Screening
- Anterior sagittal-curvature maps
- Corneal elevation maps
- Keratoconus indices
- Support for evaluating corneal morphology
- Screening support for keratoconus and marginal degeneration
Wavefront and Visual Quality
- Anterior corneal Zernike aberrations up to eighth order
- Analysis diameter up to 12 mm
- Retinal image simulation
- Point Spread Function
- Strehl ratio
- Modulation Transfer Function
Myopia and Orthokeratology
- Axial-length progression curves
- AL/CR ratio analysis
- Myopia and high-myopia probability curves
- Orthokeratology trial-lens selection
- Simulated lens fitting
- Pre- and post-treatment tangential difference maps
Additional Information
| Specification | Details |
|---|---|
| Measurement principle | Optical Low-Coherence Reflectometry |
| Measurement wavelength | 1,060 nm |
| Keratoscopic cone | 50-ring Placido |
| Analyzed points | 125,600 |
| Measured points | 18,000 |
| Corneal coverage | 9.8 mm |
| Dioptric range | 32.14–61.36 D |
| Dioptric accuracy | ±0.1 D |
| Focus mode | One-touch XYZ autofocus and tracking |
| OD/OS recognition | Automatic |
| Monitor | 10.1-inch touchscreen |
| Illumination | Red and infrared |
| Database | Internal |
| Axial-length range | 0–40 mm |
| Axial-length tolerance/resolution | ±10 µm / 1 µm |
| Corneal-thickness range | 0.2–1.2 mm |
| Corneal-thickness tolerance/resolution | ±10 µm / 1 µm |
| Anterior chamber depth | 0.7–8 mm |
| ACD tolerance/resolution | ±10 µm / 1 µm |
| Lens-thickness range | 1.5–6.5 mm |
| Lens-thickness tolerance/resolution | ±10 µm / 1 µm |
| White-to-white range | 8–16 mm |
| White-to-white tolerance | ±0.1 mm |
| Pupil-diameter range | 1–13 mm |
| Corneal radius of curvature | 5.5–10.5 mm |
| Curvature-radius accuracy | ±0.02 mm |
| Axis | 0–180° |
| Power supply | AC 100–240 V, 50/60 Hz |
| Power consumption | 100 VA |
| Dimensions | 307 W × 487 L × 577 H mm |
| Weight | Approximately 21 kg |
| Operating system | Linux |
| Internal storage | 1 TB |
| Export options | PDF or image to USB or network folder |
| Printer compatibility | USB and network printers |
Recommended Applications
- Preoperative cataract evaluation
- IOL power calculation
- Refractive cataract surgery planning
- Ocular biometric measurement
- Axial-length measurement
- Corneal topography
- Keratoconus screening
- Wavefront and visual-quality analysis
- Myopia progression monitoring
- Orthokeratology fitting
System Configuration
A typical configuration includes the AL550 optical biometer, integrated touchscreen, internal database, biometric and topographic analysis software and operating accessories. Confirm the included formulas, modules and accessories before ordering.
Important Note
The AL550 is intended for qualified eye-care professionals. IOL calculations and analysis results are clinical decision-support information and must be verified by the surgeon using the complete clinical evaluation and appropriate lens constants.
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