DEA 520 Pro Dry Eye + Corneal Topographer - Hans Heiss

DEA 520 Pro Dry Eye + Corneal Topographer

1 Ring 3Illuminations 9Functions

DEA 520 is a multi-purpose corneal topographer that integrated dry eye and corneal topography analysis.

Placido Ring

Thousands of measure points - ensure more data available and accurate analysis Smaller cone design - bigger projection area 3 Illuminations - white illumination, infrared illumination,cobalt blue illumination

9 Functions

Dry Eye Diagnosis

  • Non-Invasive Tear Film Break Up Time.
  • Cornea Sodium Fluorescein Staining.
  • Non-Invasive Tear Meniscus Height.
  • Eyelid Margin.
  • Meibomian Glands Function Evaluation.
  • Conjunctival Redness Analysis.
  • Lipid Layer Thickness.


  • Topography Analysis.
  • Pupil & Corneal Diameter Measurement.

Built-in computer

Integration design enables maximum treatment room utilization Dry eye diagnosis and Topography analysis integrated 10.1″touchscreen, ease of operation

Doctor-Patient Communication

Visualized diagnosis report, easy to understand External display connection enables real-time observation

Ergonomic Design
Switch illumination and magnification intelligently under various function modes
Compact cone, specially designed for various orbits
50°adjustable display
Auto OS/OD recognition
Clinical Application

●Dry Eye Analysis
●Lens Fitting
●Cornea Morphology Diagnosis

Dry Eye Diagnosis

Make dry eye visualized

Non-Invasive Break Up Time

Comprehensive 7 dry eye examinations.

More than 8.8mm diameter Placido ring projection. Auto identify break up area and analyze NIBUT intelligently.

Meibomian Glands Function Evaluation
Automatically anlalyze meibomian glands loss caused by meibomian glands dysfunction with precise and quantified diagnosis results
Auto identify and auto enhance of meibomian glands area

Lipid Layer Thickness

Observe dynamic lipid layer and distribution by video recording compared with standard templates. It’s helpful for judging MGD.

Eyelid Margin

The high resolution image supports zoom in to meet examination requirements of overall shape of eyelid margin and its slight change.

Cornea Sodium Fluorescein Staining

Specially designed built-in yellow filter, working with cobalt-blue illumination improves image contrast of cornea sodium fluorescein. Effectively increases positive rate of early corneal epithelial staining.

Corneal Topography

Sketch the contours of corneal

Lens Fitting

A simulated fluorescein image will be created based on patient’s cornea. The system will recommend several suitable lens for choose, which accelerates work flow and excludes unfit lens to save the trouble for patient to do real several fluorescein staining.

Research and develop with team SOS from EYE&ENT Hospital of Fudan University. Recommend the most precise lens based on the patient documentation.

Aberration & Simulation

Zernike wavefront aberration analysis makes plan of cataract and refractive surgeries visualized and ensures patient’s postoperative vision quality.

4 Maps

4 maps provide Sagittal Curvature,Tangential Curvature, Elevation Map, Refractive Power, and K1/K2/Km/Astig/Ecc value.

Specifications: DEA520


Dimension 53cm×30cm×54cm
Weight 12.7kg
Built-in CPU intel
Hard Disk 1TB
Image Resolution 2048×1536
Display 10.1″ touchscreen
Illumination White, Infrared, Cobalt-blue
Internet Connection WIFI
Printer Connection WIFI, USB
Power Supply 100~240VAC,50/60HZ
Extension Display Interface Display Port
OS/OD Recognition Automatic
Chin Rest Control Electrical
Left and Right 0~94mm work range
Front and Back 0~64mm work range
Up and Down 0~30mm work range
Language Chinese / English / Japanese
DICOM Supported

Numbers of Rings 50 Rings
Diameter of Project Area 8.8mm(43D) 11mm(43D)
Radius of Curvature 32.14 dpt~ 61.36 dpt (5.5mm~10.5mm) Accuracy:±0.1 dpt (±0.02mm)
Astigmatism Axis 0~180°
White To White 6~17mm
Pupil Diameter 1~13mm
Topography Function Sagittal Curvature Tangential Curvature Elevation Map Refractive Power
4 Maps Four Maps display
Shape Factor E, ecc, P, Q
Zernike Corneal wavefront aberration, PSF map, MTF curve and Simulated image in different pupil diameters
Examination Result Comparison Support 2 results comparison and difference calculation

Dry Eye Analysis
NIBUT Automatic analysis, tear film rupture area and trend, first break-up time and average break-up time
Tear Meniscus Height 0.01~2mm
Meibomian Glands Meibomian glands loss rate and grade
Lipid Layer Template match
Eye Redness Conjuntival congestion percentage
Eyelid Margin Support digital images zoom in
Ocular Surface Built-in yellow filter

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DEA 520 Pro Dry Eye + Corneal Topographer
DEA 520 Pro Dry Eye + Corneal Topographer

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