EM-4000 Tomey


Tomey EM4000 Specular Microscope

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.