Reichert Ocular Response Analyzer G3 Autotonometer

Reichert G3 Ocular Response Analyzer Auto Tonometer


Ocular Response Analyzer® (ORA) is the only tonometer that measures Corneal Hysteresis (CH), a superior predictor of glaucoma progression. Corneal Hysteresis is an indication of the biomechanical properties of the cornea differing from thickness or topography, which are geometrical attributes.

  • Unparalleled user experience
  • Confidence, reliability and efficiency
  • Non-contact saves time and money
  • Unique design with patients in mind 
  • Patented air pulse, maximum comfort

Significance of Corneal Hysteresis in Predicting Glaucoma Development in 25 Seconds:


“CH measurements are significantly associated with risk of glaucoma progression. Eyes with lower CH had faster rates of visual field loss than those with higher CH.”1

In addition to Corneal Hysteresis, Ocular Response Analyzer provides Corneal Compensated Intraocular Pressure (IOPcc), a better indication of the true pressure, proven to be less influenced by corneal properties than Goldmann or other methods of tonometry.

This third generation Ocular Response Analyzer from Reichert Technologies is the most user-friendly. Its fully automated alignment and unique chinrest-less design make for a fast and simple measurement that can be delegated to a trained technician. The Ocular Response Analyzer G3 is engineered to have improved measurement repeatability over previous models, and its ability to connect to electronic medical record (EMR) systems makes patient record keeping easy and worry-free. Also known as the ORA G3 and ORAG3. 


  • Easy to use 
  • Displays the following measurements: 
    • Goldmann Correlated IOP (IOPg) 
    • Corneal Hysteresis (CH) 
    • Corneal Compensated IOP (IOPcc) 
    • Waveform Score (WS) 
  • Easy EMR integration 
  • Automated alignment
  • Corneal Hysteresis: CPT® Code 92145


  • Catalog Number: 16170 
  • Dimensions: 26.7 W x 50.2 H x 35.6 cm D (10.5 x 19.75 x 14 in.) 
  • Weight: 10.4 kg (23 lbs) 
  • Voltage: 100/240 VAC Frequency 50/60 Hz 
  • Measurement Range: 7 - 60 mmHg (ISO 8612 tonometer standard) 
  • Communication Port: RS-232