The Canon RK-F2 Fully Automatic Refractor-Keratometer helps accelerate the exam process by automatically aligning and acquiring a reading for one eye and continuing to the opposite eye to perform the same function – all with one touch of a button.

Its lightweight, compact footprint coupled with an omni-directional joystick, 5.7 inch LCD monitor, USB host and built-in printer with auto cutter make the RK-F2 Full Autorefractor-Keratometer an ideal complement to your ophthalmic suite.

Canon RK F2 Autorefractor KeratometerKey Features:

  • 3D Auto-Alignment
  • Auto-Focus
  • Auto-Shooting Retro-Illumination
  • 10 Ref/Kera measurement data memory for each eye
  • Small pupil size
  • Corneal periphery measurement
  • Wide diopter measurement range (-33D through +22D)
  • Integrated thermal printer
  • Motorized joystick control
  • Motorized chin rest


At 2.0 mm, the small pupil mode helps contribute to an efficient screening and is useful when a patient’s pupils are difficult to dilate. The short reaching distance between the patient and operator allows closer personal interaction and easy access to the patient’s eyes.

Using infrared retro-illumination, the RK-F2 Ref-Keratometer provides a detailed view of the eye which is helpful for identifying cataracts, vitreous opacity, scars, and other serious eye problems.

The peripheral keratometry mode provides accurate measurements for examining oblique astigmatisms and helps determine the best fit for a contact lens. The RK-F2 Ref-Keratometer can be used to make a series of measurements at a 30 degree angle from the eye’s center along the attentive meridians. WIDE MEASUREMENT RANGE The dioptric measurement range of -30D to +22D allows examination of strong myopia or hyperopia. The astigmatic measurement range extends from 0 to 10D. The radius of curvature extends from 5 to 10 mm (33.75D to 67.5D) for keratometry.

Advanced software automatically confirms both the correct alignment and focus.

The RK-F2 Ref-Keratometer is compact and designed to be operated either sitting or standing, whichever is more comfortable for the operator. Weighing a little more than 33 pounds, the lightweight RK-F2 Ref-Keratometer maximizes small work areas and comfortably fits on a Canon instrument table (sold separately) with a Canon Full Auto Tonometer or Canon Non-Mydriatic Retinal Camera (both sold separately). Keeping the Canon machines next to one another can help expedite the exam process.

The 5.7 inch color LCD monitor tilts 40° making the RK-F2 Ref-Keratometer easy to use if the operator is sitting or standing. The clear LCD display also includes multi-functional screen buttons allowing the operator to switch menus as needed.

Aligning the patient’s eye is easy using the motorized omni-directional joystick with a fine focus dial. All positioning may be performed with one hand allowing the other hand to work with the patient, if needed. The top of the joystick button has the start button which can immediately be pressed once the patient is properly positioned.

The front-loaded, high speed built-in printer includes an auto cutter making it simple to remove the print-out. The ECO setting reduces the printing density and thereby conserves the paper necessary for printing by up to 50% as compared to printing without using the ECO setting.



Refraction Measurement Sph: -30D to +22D(.12/.25D Step)
Cyl: +/-10D(.12/.25D Step)
Axis: 0-180°(1°Step)
Power 100-240V
Corneal Measurement

Radius: 5.0-10mm(.01mm Step)
Refractive Power: 33.75-67.5D(.01/.12/.25D Step)
Cylinder: 0-+/-9D
Axis: 0-180°(1°Step)
Periphery: 30°
Diameter: 2-14mm

Monitor 5.7” Tilting Color LCD
Vertex Distance 0mm,10mm,12mm,13.5mm,15mm Interface RS-232, USB Host, LAN
Minimum Pupil Diameter ø2.0mm Printer Thermal w/ Automatic Cutter
Pupillary Distance 30-88mm(1mm Step) Chin Rest Movement Up/Down: 60mm(Motorized)
View Mode Traditional Chin Rest Movement Range B/F: +/-17mm
R/L: +/-43mm
U/D: +/-15mm
Dimensions W:10.2" x L:19.3" x H:18.5" Weight 33lbs



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