Description
What’s Included
- Topcon KR-800 auto kerato-refractometer main unit
- Power cable
- Cover
- Test eye
- 90-day Digital Eye Center warranty
Condition & Warranty
Used. Unit has been tested and confirmed fully operational before listing. Some cosmetic wear is visible on the back of the unit, consistent with previous clinical use; all measurement functions perform as intended. Covered by a 90-day warranty on parts and workmanship.
Topcon KR-800 — Used Auto Kerato-Refractometer
The Topcon KR-800 is a reliable, workhorse-class auto kerato-refractometer that combines objective refraction and corneal curvature measurement in a single compact instrument. Designed for high-volume clinical environments, the Topcon KR-800 delivers rapid, repeatable readings with minimal patient cooperation required — sphere, cylinder, axis, and K readings captured automatically in seconds. For practices that need consistent pre-exam data without the complexity of multi-function platforms, the Topcon KR-800 strikes the right balance of performance and simplicity. Research published in BMC Ophthalmology confirms that automated autorefraction and keratometry measurements demonstrate high accuracy across a wide range of patient profiles, validating the clinical utility of instruments like the KR-800 for pre-exam screening.
Why Practices Choose the Topcon KR-800
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Combined AR + keratometry — captures objective refraction and corneal curvature in one measurement session, eliminating the need for a separate keratometer in the pre-exam workflow. - Wide sphere range — −25.00D to +22.00D covers the vast majority of refractive prescriptions encountered in general and specialty practice.
- Full cylinder range — 0 to ±10.00D in 0.12D or 0.25D steps handles moderate to high astigmatism with precision.
- Keratometry range 33.75D–67.50D — radius 5.00–10.00mm captures flat and steep corneas, supporting contact lens fitting and surgical pre-screening.
- Auto capture with small pupil support — requires a minimum pupil diameter of just 2.0mm, making it reliable even in dim lighting or with pharmacologically constricted pupils.
- Fast turnaround — auto-shot mode minimizes chair time and supports high patient throughput without sacrificing measurement quality.
- Topcon platform reliability — the KR-800 is part of Topcon’s proven kerato-refractometer line, with thousands of units deployed in clinics worldwide.
Clinical Applications
- Pre-exam refraction screening — provides the starting point for subjective refraction, reducing chair time during the full exam.
- Contact lens base curve selection — keratometry readings support accurate selection of soft, RGP, and specialty lens parameters.
- Surgical pre-screening — K readings feed into LASIK, cataract, and refractive surgery planning workflows.
- Pediatric and low-cooperation screening — auto-capture and small pupil capability work in patients who cannot perform subjective testing reliably.
- Corneal curvature monitoring — serial K readings track changes in corneal shape over time in keratoconus and post-surgical follow-up.
Who This Is For
- General ophthalmology and optometry practices needing a dependable, single-purpose AR/K instrument for daily pre-exam use.
- Contact lens specialists who need precise K readings alongside objective refraction at each visit.
- Surgical screening programs integrating keratometry data into cataract or refractive surgery pre-op protocols.
- Mobile and satellite clinics requiring a compact instrument that handles the full refraction + K workflow without a large footprint.
Technical Specifications
| Specification | Detail |
| Sphere range | −25.00D to +22.00D (0.12D / 0.25D steps) |
| Cylinder range | 0 to ±10.00D (0.12D / 0.25D steps) |
| Axis | 0° to 180° (1° / 5° steps) |
| Minimum pupil diameter | 2.0mm |
| Keratometry radius | 5.00–10.00mm |
| Keratometry power | 33.75D–67.50D |
| Vertex distance | 12mm |
| Manufacturer | Topcon (Japan) |
| Condition | Used — tested and confirmed operational |
| Warranty | 90-day Digital Eye Center warranty (parts & workmanship) |
Compare Topcon Autorefractor Models
| Feature | KR-8900 | KR-800 (this unit) | KR-800s | KR-1 |
| Objective refraction | Yes | Yes | Yes | Yes |
| Keratometry | Yes | Yes | Yes | Yes |
| Subjective refraction | No | No | Yes (glare testing) | No |
| Condition | Used | Used | Used | Used |
| Price | $4,950 | $7,150 | $7,700 | $8,800 |
Explore the full Topcon lineup: the Topcon KR-8900 offers a compact entry-level option, while the KR-800s adds subjective glare testing for practices needing that additional capability.
Questions about the Topcon KR-800? Contact us for availability and shipping details.
