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The Tomey TMS-4N Automatic Corneal Topographer is a high-resolution corneal topography system using a ring cone measurement method with up to 31 rings and 7,300 measurement points.
It provides accurate and repeatable measurements, Fourier refractive analysis, keratoconus screening, statistical indices, and multi-language operation. The system includes USB connection, auto shot function, built-in LCD alignment, and a large patient database for efficient clinical workflow.
The TMS-4N continues to set the standard for resolution, accuracy, and corneal coverage. It features a refined ring cone measurement system and delivers high-resolution imaging with:
The small cone design reduces nose and brow shadow while providing extensive corneal coverage. Low light ring illumination enhances patient comfort during examination.
The TMS-4N includes comprehensive software modes:
Fourier analysis provides refractive information including:
Analysis is available for 3 mm and 6 mm diameter zones.
Additional software applications include:
The system provides the following statistical indices:
Optional contact lens software includes:
| Technical Specifications – Tomey TMS-4N | |
|---|---|
| Measurement Type | Ring cone |
| Ring Numbers | 25 rings (standard) / 31 rings (option) |
| Measurement Points | 6,400 maximum (25 rings) / 7,300 maximum (31 rings) |
| Measurement Points per Ring | 256 |
| Minimum / Maximum Ring Diameter | 0.46 – 8.8 mm (25 rings) / 0.57 – 10.9 mm (31 rings) |
| Spherical Measurement Range | 5.5 to 10.0 mm (61.36 to 33.75 D) |
| Spherical Measurement Accuracy | ±0.02 mm |
| Alignment | Manual with auto-correction (CL option only) |
| Interface | USB 2.0 (Connection with main unit) |
| Display | 5.7” color LCD |
| Dimensions | 296 (W) x 508 (D) x 448 (H) mm |
| Weight | 14 kg |
| Power Supply | AC 100–240V, 50/60 Hz |
| Power Consumption | 45 to 55 VA |
| Operating System | Windows 7 / Windows 8 |
| CPU Requirement | Intel® Core™ 2 Duo processor or higher |
| Memory Requirement | More than 512 MB |
| Display Requirement | 800 x 600 resolution or higher |
| Weight | 1 lbs |
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The Optimetrics AT-20D Double Instrument Electric Table is a stable, practical solution designed to support two ophthalmic devices — from slit lamps to autorefractors and retinal cameras. Built to last and compliant with international medical standards.
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