Oculus Easygraph Topographer

Product Code: EQ0573
At a glance:
  • Corneal topographer with built in keratometer
  • Hand held or Slit Lamp mounted
  • Contact Lens Fitting and Fluorescein Image Simulation
  • Perfect for a small practice with limited space
  • Progression follow up
  • More information below...

Precise Measurement

Offering precise measurement and easy to understand presentations, the Easygraph features functions such as; Contact lens fitting, keratoconus screening, zernike analysis and much more. Equiped with reliable and precise diagnostics, it offers a compact solution yet advanced topography screening.

The Easygraph – The Small Performance Wonder

The Easygraph works with the tried and tested measuring and device technology that has become indispensable in today’s contact lens fitting and reliable diagnostics fields. Ideal where space is limited.


Easy to understand OxiMap® presents a color map of the oxygen transmissibility of soft contact lenses based on the lens power, which is easy to understand – even for your customers!

Compact Corneal Topographer

The Easygraph combines small construction with grand technology. The tried and tested measuring system is identical to that of the keratograph. This compact topographer is a combination of a topography system and an integrated keratometer. In the non-contact examination process, 22 000 measuring points are used to map the cornea. Digital image transmission and automatic release guarantee the best possible reproducibility.

Simple Mounting on the Slit Lamp

Precise measurement with simple presentation

  • Overview with camera image and color map
  • 3D and 2D display
  • Various color maps
  • Plot of the Fourier analysis
  • Refractive map
  • Height map of the topography data
  • Map of the sagittal and tangential radii
  • Comparison of different examination results for follow-up purposes

 Contact Lens Fitting

Progression Follow-up Diagnostics

Regular progression follow-ups are essential, not only for cases of keratoconus. In the “Compare examination“ display, up to four examinations can be directly compared with each other and any changes of the corneal topography can be displayed with color-coding.

Additional Options

You can supplement the main functions of your Easygraph with various software modules customized to meet your individual requirements.

Keratoconus Detection at the Highest Level

Thanks to topography measurement, corneal abnormalities can often be detected and diagnosed in the early stages. The measurements are compared with those in a norm database. If abnormalities are present, the measured values are displayed in yellow or red. If a keratoconus is present, it is classified based on the existing topography. The Topographic Keratoconus Screening also helps you in progression follow-ups and where applicable, shows you whether and how the keratoconus has changed.




The OxiMap® presents a color map of the oxygen transmissibility of soft contact lenses based on the lens power, which is easy to understand – even for your customers!

How Much Oxygen Really Reaches the Cornea?

Until now, only the oxygen transmissibility values for the center of a contact lens with -3.0 D were available. The OxiMap® shows the oxygen transmissibility depending on the lens material and the lens thickness. The OxiMap® is available for the most frequently sold spherical soft contact lenses. This impressive tool assists you in helping your patients select the most suitable contact lens.

Plain and Comprehensive Visualization Assures Patient Loyalty!

The OxiMap® color coding of the Dk/T-values and the recommended wearing time

Compare Different Soft Contact Lenses!

The OxiMap® is individually adapted based on the lens power and supports you in your consultation with the patient and helps you to choose the most suitable contact lens. New materials used for soft contact lenses provide excellent oxygen transmissibility.

OxiMap® was developed in close cooperation with JENVIS Research and the University of Applied Sciences in Jena.

Measuring range: 3 – 38 mm, 9 – 99 dpt

Accuracy: ± 0.2 dpt

Reproducibility: ± 0.2 dpt

Number of rings: 22

Working distance: 40 mm

Number of test points: 22 000

Dimensions: W x D x H 116 x 103 x 214 mm

Weight 630 g


PC Minimum requirements Processor: Intel® Core i3 or better, 4 GB RAM, Hard drive space: min. 500 GB, Graphic card: Intel® HD Graphics 2000 or better, recommended screen resolution: 1 920 x 1 080 (Full-HD)


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