Description
Topcon KR 8800 Autorefractor Keratometer Used — The Most Popular Topcon Autorefractor
The Topcon KR 8800 is the most widely deployed autorefractor keratometer in the Topcon line — a proven platform found in thousands of ophthalmology and optometry practices worldwide. This Topcon KR 8800 combines autorefraction and keratometry using Topcon’s exclusive Rotary Prism Technology, which measures across the full retinal area rather than isolated points to deliver consistent sphere, cylinder, axis, and K-readings through pupils as small as 2.0 mm. The KR-8800 adds simultaneous right/left display, PD measurement (20–85 mm), and dual USB + RS-232C connectivity over the KR-8000, making it the more capable instrument in the same price range. With a built-in thermal printer and multiple format options, the Topcon KR 8800 produces immediate hard-copy results for chart documentation and optical hand-off. This is a used instrument certified by an authorized Topcon technician, backed by Digital Eye Center’s 90-day warranty.
Research published in Translational Pediatrics confirms strong clinical agreement between automated refraction and subjective refraction — validating the role of a reliable autorefractor as the foundational step in efficient, accurate refractive examination workflows.
What's Included
- Topcon KR-8800 autorefractor keratometer
- Power cable
- 90-day Digital Eye Center warranty
Why Practices Choose the Topcon KR 8800
- Rotary Prism Technology (Topcon exclusive) — full-area retinal measurement rather than single-point sampling delivers more accurate and repeatable sphere, cylinder, and axis readings, reducing the frequency of re-measurement in challenging eyes.
- 2.0 mm minimum pupil diameter — reliable autorefraction and keratometry on miotic, post-surgical, and elderly patients without dilation, expanding the range of patients who can be measured efficiently.
- Simultaneous R/L display — both eye measurements on screen simultaneously for instant bilateral comparison — a workflow advantage the KR-8000 lacks — speeding up exam lane throughput.
- PD measurement (20–85 mm) — pupillary distance captured at the same instrument step, reducing the need for a separate PD ruler measurement in the dispensing workflow.
- USB and RS-232C output — dual connectivity options for EMR integration, phoropter data input, and Topcon instrument networks; USB is more compatible with modern systems than RS-232C-only instruments.
- Auto-fogging scenic fixation target — built-in fogging relaxes accommodation during measurement, reducing accommodation artifact that leads to over-minused objective refraction findings.
- Most widely serviced Topcon autorefractor — the KR-8800 has the largest installed base in the Topcon line; parts and certified technician support are more readily available than for earlier or less common models.
Clinical Applications
- Routine refraction starting point — fast automated objective refraction reduces chair time by providing an accurate initial prescription for subjective refinement.
- Cataract pre-surgical assessment — K-readings feed directly into IOL power formulas (SRK/T, Holladay, Barrett); the KR-8800’s keratometry accuracy supports reliable IOL selection.
- Contact lens fitting — keratometry values guide base curve selection for RGP and specialty designs; simultaneous refraction captures astigmatism axis for toric lens fitting.
- Pediatric screening — rapid auto-capture and the 2.0 mm pupil threshold reduce examination time in children and patients who have difficulty maintaining fixation.
- Glaucoma and diabetic screening programs — high-throughput measurement with simultaneous bilateral display supports volume-efficient community screening workflows.
Who This Is For
- Ophthalmology and optometry practices seeking the most widely supported Topcon autorefractor platform at a used price point with certified technician availability nationwide.
- Practices upgrading from a KR-8000 who want improved connectivity (USB), simultaneous R/L display, and PD measurement in the same price category.
- Cataract surgery practices requiring accurate automated K-readings for IOL planning in a dedicated pre-op examination lane.
- Multi-location groups standardizing on Topcon autorefractors across sites — the KR-8800’s wide service network minimizes downtime risk compared to less common models.
Technical Specifications
| Specification | Detail |
| Model | Topcon KR-8800 |
| Measurement principle | Rotary Prism Technology (Topcon exclusive) |
| Sphere range | -25.00 D to +22.00 D (0.12 D / 0.25 D steps) |
| Cylinder range | 0 to ±10.00 D (0.12 D / 0.25 D steps) |
| Axis range | 0–180° (1° or 5° steps) |
| Minimum pupil diameter | 2.0 mm |
| Corneal curvature range | 5.0–10.0 mm (33.75–67.50 D) |
| PD measurement range | 20–85 mm |
| Display | Simultaneous R/L measurement display |
| Printer | Built-in thermal (multiple format options) |
| Connectivity | USB, RS-232C |
| Condition | Used |
| Warranty | 90-day Digital Eye Center warranty |
Condition & Warranty
Used. Inspected, tested, cleaned, and confirmed fully functional. The unit shows some signs of usage consistent with prior clinical use. No instruction manual included — power cable only. Covered by a 90-day warranty on parts and workmanship.
Compare Topcon Autorefractor Keratometer Options
| Model | Key Feature | Condition | Price |
| Topcon KR-8800 | Most popular, USB + R/L display + PD | Used | $3,080 |
| Topcon KR-8000 | Budget entry point, RS-232C only | Used | $3,100 |
| Topcon KR-8900 | Compact + corneal diameter measurement | Refurbished | $4,950 |
| Hans Heiss HRK-9900 | Brand new, touchscreen display | Brand New | $5,670 |
Comparing autorefractor options? See the Topcon KR-8900 for a compact refurbished upgrade or the Hans Heiss HRK-9900 for a brand-new touchscreen instrument.
Questions about the Topcon KR 8800? Contact us for availability and shipping details.
