Topcon KR-800 Auto Kerato-Refractometer

Brand: Topcon


The Topcon KR-800 Auto Kerato-Refractometer incorporates the very latest in design technology and ergonomics as well as Rotary Prism technology for more accurate measurements.

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The Topcon KR-800 Auto Kerato-Refractometer is compact and easy to use. It features Topcon’s Rotary Prism technology for highly accurate measurements and a simple, intuitive display. Also known as: KR800 and KR 800. 


  • Rotary Prism Technologyallows for unparalleled precision and reliability and measures a wider area of the retina while permitting measurements through pupils as small as 2mm in diameter
  • Bright, 8.5″ color touch-screen display
  • Smooth operation of the unit when using the X-Y control lever and more fluid measuring process
  • Compact, modern, and ergonomic design
  • Improved joystick operation 
  • Ease of use and operability
  • EMR connectivity


Refractive Power Measurement
Spherical refractive power
-25D to +22D (0.12D/0.25D steps)*
Cylindrical refractive power OD to ±10D (0.12D/0.25D steps)
Astigmatic axial angle 0 to 180° (in 1°or 5°steps)
Minimal measurable pupil diameter 2 mm
Corneal Curvature Measurement
Corneal curvature radius
5.00 to 10.00mm (0.01mm step)
Corneal refractive power 67.50D to 33.75D (0.12D/0.25D steps) (where, corneal refractive power =1.3375)
Corneal astigmatic refractive power OD to ±10D (0.12D/0.25 D steps)
Corneal astigmatic axial angle 0 to 180° ( 1°/ 5°steps)
PD Measurement Range 20mm to 85mm (0.5mm step)
Data Transport Terminal USB (import) /RS-232C (Export)/ LAN (Export)
Dimensions 317-34lmm (W) X 521-538mm (D) X 447-477 mm (H)
Weight 15 kg
Power Supply 100-240V AC, 50-60Hz, 30-70VA