Description
What’s Included
- Reichert G3 Ocular Response Analyzer Main Unit (with integrated processing software and internal thermal printer)
- Power supply and connection cables
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. This Reichert G3 Ocular Response Analyzer has been fully tested and is in excellent working order. The non-contact air-puff fluidics fire cleanly, the infrared optical sensors track corneal deformation accurately, and the touchscreen interface is bright and responsive. Corneal Hysteresis (CH) and Corneal-Compensated IOP (IOPcc) calculate seamlessly. The chassis shows minor signs of cosmetic wear as expected for used automated clinical equipment. Covered by a 90-day warranty on parts and workmanship.
Reichert G3 Ocular Response Analyzer — Used Non-Contact Tonometer with Corneal Hysteresis
The Reichert G3 Ocular Response Analyzer (ORA) is a non-contact diagnostic platform that goes beyond traditional tonometry by measuring the biomechanical properties of the cornea. Using a patented, ultra-fast bi-directional applanation air-puff sequence, the Reichert G3 Ocular Response Analyzer reports Corneal Hysteresis (CH), Corneal Resistance Factor (CRF), Corneal-Compensated IOP (IOPcc), and Goldmann-correlated IOP (IOPg) in a single measurement.
Corneal Hysteresis characterizes the cornea’s ability to absorb and dissipate energy, and IOPcc is less affected by corneal properties than Goldmann-style tonometry. Together they give clinicians a fuller picture of glaucoma risk than IOP alone, with an automated alignment system and internal thermal printer that keep exam-lane workflow fast.
Research published by the National Library of Medicine reports that Corneal Hysteresis is consistently associated with glaucoma progression, in several analyses more strongly than intraocular pressure or central corneal thickness.
Why Practices Choose the Reichert G3 Ocular Response Analyzer

- Corneal Hysteresis (CH) — The only widely available metric of corneal biomechanics, a strong independent predictor of glaucoma progression.
- Corneal-Compensated IOP (IOPcc) — A pressure value less influenced by corneal thickness and stiffness than Goldmann-style readings.
- Goldmann-Correlated IOP (IOPg) + Waveform Score — Familiar IOP output plus a quality metric for each measurement.
- Non-Contact Air-Puff — No anesthetic drops and no probe contact, improving patient comfort and infection control.
- Automated Alignment — Consistent, technician-friendly capture across operators.
- Internal Thermal Printer — Immediate printed report of CH, CRF, IOPcc and IOPg at the point of care.
See the Reichert G3 Ocular Response Analyzer in Action
In this overview from Reichert, Dr. Felipe Medeiros explains how Corneal Hysteresis measured by the Ocular Response Analyzer relates to glaucoma progression.
Clinical Applications
- Glaucoma Risk Assessment — Use Corneal Hysteresis and IOPcc to refine risk beyond IOP and central corneal thickness.
- Glaucoma Progression Monitoring — Track CH over time as an independent biomechanical risk marker.
- Post-Refractive and Thin/Thick Cornea Eyes — Obtain a corneal-compensated pressure where Goldmann readings are less reliable.
- General IOP Screening — Fast, drop-free non-contact tonometry for routine exams.
Who This Is For
- Glaucoma and Comprehensive Practices that want corneal biomechanics alongside IOP for better risk stratification.
- High-Volume Screening Lanes that need fast, drop-free, technician-friendly tonometry.
- Refractive and Cornea Specialists managing eyes where corneal properties confound standard tonometry.
Technical Specifications
| Specification | Detail |
| Model | Reichert Ocular Response Analyzer G3 |
| Type | Automated Non-Contact Tonometer (Ocular Response Analyzer) |
| Technology | Patented bi-directional applanation (air-puff) |
| Measurements | Corneal Hysteresis (CH), Corneal Resistance Factor (CRF), IOPcc, IOPg, Waveform Score |
| Measurement Range | 7–60 mmHg (ISO 8612) |
| Alignment | Automated |
| Printer | Internal thermal printer |
| Connectivity | RS-232 |
| Power | 100/240 VAC, 50/60 Hz |
| Dimensions | 26.7 × 50.2 × 35.6 cm; 10.4 kg |
| Condition | Used |
| Warranty | 90-day warranty on parts and workmanship |
Compare Non-Contact Tonometers
| Feature | Reichert G3 ORA | Reichert 7cr | Topcon CT-80 |
| Type | Non-contact ORA | Automated NCT | Non-contact tonometer |
| Corneal Hysteresis (CH) | Yes | No | No |
| Corneal Resistance Factor | Yes | No | No |
| IOPcc / IOPg | Yes | Yes | No (standard IOP) |
| Measurement Range | 7–60 mmHg | 7–60 mmHg | — |
| Internal Printer | Yes | — | Yes |
| Condition | Used | Used | Used |
| Price | $5,500 | $2,860 | $1,980 |
Also consider the Reichert 7cr non-contact tonometer for corneal-compensated IOP at a lower price point, or step up to the Reichert RK 700 auto ref/keratometer package.
Questions about the Reichert G3 Ocular Response Analyzer? Contact us for availability and shipping details.





