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Righton Retinomax K+screeen

Righton Retinomax K+screeen

Hand held auto-refraction and keratometry.

The Retinomax K+Screeen provides a lightweight and portable solution with an easy to use operation panel.
Upwards-tilting LCD

Easily adapt to Retinomax Screeen’s user-friendly design.

The upwards tilting 3.5 inch display, with a 100° seamless range of motion, makes the screen accessible no matter the position of the patient.

New child mode

To keep children’s attention, a melody plays continually while the measurement is being taken.

A constantly changing colour display, both on the outside and inside target of the device, also keeps children involved during the process.

Focus Assist

Informs the examiner of the optimum focusing point. Measurement acquisition is guided by focus assist with colour coding to ensure you are in the correct position.

Automatic Axis Compensation and extended measurement range

Not only does the device let the examiner know the cylinder axis angle, but it can also automatically compensate if it is not level.

The measurement range has also been of the K+screeen has also expanded.

Improved battery life

At 180 minutes, the battery capacity is now twice that of conventional models.

The longer battery life is beneficial when group-screening, outskirt or performing surgery.

The industry standard for hand held auto-refraction and keratometry
  • High speed fogging minimises accommodation
  • Upwards tilting LCD screen
  • Auto measurement provides highly accurate and repeatable results
  • New cylinder axis correction compensation allows the operator to approach patients from any angle
  • The unit comes complete with a dedicated charging base and infra-red printer unit
Technical specifications
Description & Technical Specs


Main body
Handheld Autorefract Keratometer Retinomax K+ Screeen
Measurement range
Spherical (S + C) -20D to +23D (VD = 12 mm) (AUTO/0.12/0.25D steps)
Cylinder 0D to ±12D (AUTO/0.12/0.25D steps)
Measurement of radius of curvature
Measurement range
Radius of curvature 5.00 to 15.00 mm (in 0.01 mm increment)
Corneal astigmatism 0D to ±12D (R5 mm to 13 mm)
0D to ±7D (R14 mm to 15 mm)
Centre ø3.2 mm (R8 mm)
Pupil size measurement
2.0 to 12.0 mm (in 0.1 mm increment)
Dimensions (main body only)
168(W) x 202(D) x 236(H)mm
970 g (with battery)
External output
103(W) x 167(D) x 75(H)mm
External output
USB Micro-B
180(W) x 244(D) x 79(H)mm
Input voltage
AC 100 to 240 V, 50/60 Hz