MediWorks AL550 Optical Biometer for Cataract Surgery

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