
Function & Aesthetics Combine in the New KR-1
Topcon, with its wealth and experience in designing and manufacturing high performance refractometers since 1951, introduces a brand new model, the KR-1. The KR-1 is more stylish and more compact than ever before. The flexible control panel enables the KR-1 to be installed in many different positions in the examination room. The KR-1 provides an innovative operation experience and eliminates the need for a control lever.The KR-1 is the new leading refracto-keratometer.
Flexible Layout and Space Saving Layout
The adjustable control panel enables the operator to be positioned anywhere around a patient because the control panel can be faced in a number of different directions. The compact body enables the operator to support the patient easily from many different positions during measurement even when the patient’s eyelid needs to be opened. These unique aspects will contribute to space saving and flexible layout in your eye examination room.

Simple and Quick Operation - R / L fully automated measurement -
The KR-1 takes automated operation to a new level. Simply touch the center of the pupil on the touchscreen control panel, and the KR-1 automatically obtains right and left eye information immediately.
The KR-1 provides an innovative operation experience and eliminates the need for a control lever.
New Compact Ergonomic Design
The KR-1's new ergonomic design provides a more comfortable position for the patient with an inclined optical head (5°) and a new headrest design. The compact body enables easier access to patients.
※ By Topcon original investigation.
- Ergonomic Optical Head and Headrest Design
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- Compact Body
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Reliable Measurement
- Peripheral KRT
- The KR-1 allows the operator to take peripheral KRT measurements of the corneal curvature radius, in addition to inner KRT ring measurements, which is useful in corneal evaluation for contact lens fitting.

- Rotary Prism Measuring System
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With Topcon’s exclusive Rotary Prism Technology, the KR-1 also provides unmatched accuracy and reliability.
The innovative optical design incorporated into the KR-1 allows for accurate and reliable measurements with pupil as small as φ2mm.

System Chart

* Contact Topcon subsidiaries or dealers for system configurations.
Specifications
| Refractive Power Measurement | Spherical refractive power: -25D to +22D (0.12D/0.25D steps)※ |
|---|---|
| Cylindrical refractive power: 0D to ±10D (0.12D/0.25D steps)※ | |
| Astigmatic axial angle: 0° to 180° (1°/ 5° steps) | |
| Minimal measurable pupil diameter: φ2.0mm | |
| Corneal Curvature Measurement | Corneal curvature radius: 5.00mm to 10.00 mm (0.01mm step) |
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Corneal refractive power: 67.50D to 33.75D (0.12D/0.25D steps) (corneal refractive index = 1.3375) |
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| Corneal astigmatic refractive power: 0D to ±10D (0.12D/0.25D steps) | |
| Corneal astigmatic axial angle: 0° to 180°(1°/ 5° steps) | |
| PD Measurement Range | 20mm to 85mm (1mm step) |
| Data Transport Terminal | USB (Import), RS-232C (Export), LAN (Export) |
| Dimensions | 286~326m (W) × 445~526mm (D) × 466~615 mm (H) |
| Weight | 19.0kg |
| Power Supply | 100-240V AC, 50-60Hz, 75VA |
※-25D ≦ spherical refractive power + cylindrical refractive power or spherical refractive power + cylindrical refractive power ≦ +22D
















