EM-4000 Tomey
Abstract
The Tomey EM-4000 is a high-speed specular microscope with LED illumination and automated CCD imaging, delivering endothelial analysis in 4 seconds with integrated pachymetry. Features proprietary "Core method" cell counting and auto-alignment with 16-image capture for accurate endothelial cell density and morphology assessment.
Core Technology & Performance
- Imaging System: LED light source with high-speed CCD camera capturing 16 images in series, automatically selecting and displaying the finest image
- Measurement Speed: 4 seconds per eye examination with fully automated operation
- Alignment: Auto alignment technology ensuring precise reproducibility of measured areas
Advanced Analysis Methods
Cell Counting Technology: Features Tomey's proprietary "Core method" for accurate cell counting, addressing inaccuracies in standard auto modes that miss cell edges
Analysis Options:
- Automatic analysis plus two manual analysis methods: "Core method" and "L count method"
- Nucleus Analysis and Cellular Evaluation for unclear images
Integrated Features
- Pachymetry: Integrated non-contact pachymetry automatically measures central corneal thickness with every examination
- Capture Technology: Constant acquisition system detecting 16 images simultaneously, reducing acquisition errors
Clinical Capabilities
Measured Parameters:
- Endothelial cell density (ECD)
- Cell area variability (CV)
- Hexagonal cell percentage
- Central corneal thickness (CCT)
- Wide area capture including outer peripheral analysis with dark area analysis function
User Interface & Data Management
- Display: Large color touch screen serving as operating monitor and display for measured values
- Database: Accommodates thousands of patient images and data with removable SD card backup
- Connectivity: Output capability to EHR systems
Clinical Applications
- Pre/post-operative endothelial monitoring
- Cataract surgery evaluation
- Contact lens fitting assessment
- Corneal disease monitoring
- Research applications requiring precise endothelial analysis
The EM-4000 represents a significant advancement in specular microscopy with its proprietary Core counting method providing superior accuracy compared to traditional automated systems.
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