Topcon KR-1 Autorefractor/Keratometer



Topcon KR-1 Auto Kerato-Refractometer features fully automated operation with an easy-to-use color touch screen, a 360 degree rotatable monitor, and a flexible layout and space saving design.

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The Rotary Prism measuring system ensures fast, accurate, and repeatable refraction and keratometry measurements.

  • Flexible layout and space saving design – adjustable control panel can be positioned in any direction.
  • 360° rotatable monitor
  • Easy-to-use color touch panel – Eliminates the need for a control lever
  • New Compact and Ergonomic Design – Comfortable design for patients with optical head and headrest; compact body
  • Reliable Measurement – Topcon’s Rotary Prism measuring system ensures stable measurement accuracy. Reliable, reporoducible, repeatable results


  • Refractive power measurement: Spherical refractive power: -25 to +22D (0.12D/0.25D steps)* Cylindrical refractive power: 0D to ±10D (0.12/0.25D steps)* Astigmatic axial angle: 0° – 180° (1°/5° steps)
  • Corneal curvature measurement: Corneal curvature radius: 5.00 mm – 10.00 mm (0.01 mm step) Corneal refractive power: 67.50D – 33.75D (0.12/0.25D steps) (corneal refractive index = 1.3375) Corneal astigmatic refractive power: 0D – ± 10D (0.12D/0.25D steps) Corneal astigmatic axial angle: 0° – 180° (1°/5° steps)
  • PD measurement range: 20 – 85 mm (1 mm step)
  • Data transport terminal: USB (import), RS-232C (export), LAN (export)
  • Dimensions: 86~326 mm (W) x 445~526 mm (D) x 466~615 mm (H)
  • Weight: 219 kg
  • Power supply: 100-240V AC, 50-60Hz, 75VA