Nidek Tonoref RKT-7700 Autorefractor Keratometer Tonometer – Used



This used Nidek Tonoref RKT-7700  Autoref/keratometer tonometer has been checked and certified by an authorized technician. It is in perfect cosmetic and working condition and comes with a 3-month warranty.

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Out of stock


What’s included

  •  Nidek Tonoref RKT-7700 Autorefractor Keratometer Tonometer
  • Power Cable

Advanced & Innovative World’s First Combination Model

Auto Ref/Keratometer & Non-Contact Tonometer in One Unit – The Nidek Tonoref RKT-7700 is the world’s first combination model of an auto ref/keratometer (ARK) and a non-contact tonometer (NT). Combining the measurements of refractive power, corneal curvature, and intraocular pressure (IOP), the device provides faster and more accurate patient care in clinics and hospitals.

Fast & Accurate

High-Speed & Reliable Measurement – With NIDEK’s advanced technologies, the Tonoref RKT-7700 provides highly accurate, reliable, and fast measurement with significantly reduced measurement time.

Fully Automatic

3D Auto-Tracking & Auto-Shooting – The auto-alignment *X & Y directions), auto-focusing (Z direction), and auto-shooting provides faster, simpler, and more accurate measurements. When alignment is performed correctly, measurements start automatically.

Printer with Automatic Paper Cutter – The ARK and NT data can be automatically separated when printing.

Optimized Operability

From alignment and measurement to data printing, all operations can be easily achieved with the user-friendly joystick of the Nidek Tonoref RKT-7700

  • Tiltable LCD Monitor – The clear 5-inch TFT color LCD with a tilting function offers easy operation even for a standing operator. The standing operator can still see the monitor while lifting the patient’s eyelid to help open the eye.
  • Motorized Chinrest – Up/Down buttons for the motorized chinrest
  • One-Touch Lock – The upper movable part of the unit can be fixed with the advanced one-touch lock.

Patient Friendly

  • Softer Air – The Nidek Tonoref RKT-7700 advanced APC (Automatic Puff Control) function provides softer air for IOP measurement, providing increased patient comfort.
  • Safety First—Patient Detection Sensor—When a patient is in front of the unit, the chinrest does not move while calibration and initialization are ongoing.


Auto refractor/ keratometer
Sphere Range -20D to +22D (0.12D/0.25D)
Cylinder Range 0D to +/-12D (0.12D/0.25D)
Axis range 0 to 180 deg (in 1 or 5 steps)
Minimum measurable pupil diameter 2.5 mm
Corneal Curvature Mode
Corneal curvature radius 5 to 13 mm (0.01mm)
Refraction Index 1.3375
Auto Track & Automatic Data Capture X-Y-Z direction, Automatic Data Capture
Corneal refraction 67.5 to 25.96D (0.12D/0.25D)
Corneal Astigmatism 0D to +/12D (0.12D/0.25D)
Corneal astigmatism axial angle 0 to 180 deg (in 1 and 5 steps)
PD measurement range 30-85mm in 1 mm step
Non-Contact Tonometer
Measurement Range 1mm Hg to 60 mm Hg
Measurement Range Settings APC40, APC60 (APC = Automatic Pressure Control)
Working Distance 11 mm
Eye Fixation  Fixation Light
Auto Track & Automatic Data Capture X-Y-Z Direction, automatic data capture
General Information
Monitor 5-inch TFT color
Printer Thermal line printer with automatic paper cutter
Power supply AC 100-240 V , 50/60 Hz
Power consumption 80 VA
Dimensions & Weight 10.23″(W) x 18.93″(D) x 19.9″(H) / 50.7 lbs





Additional information

Weight 65 lbs
Dimensions 24 × 24 × 24 in

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