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TRK-1P - Automatic kerato/refractometer

TRK-1P is a unique instrument which combines 4 function in 1 compact device. The Topcon TRK-1P features a complete auto alignment system, combined with a refractometer, a keratometer, a non-contact tonometer and a pachymeter. A true 4-in-1 instrument.

• 4 in 1: keratometry, refraction, tonometry and pachimetry
• fully automatic
• large colour screen, tilting
• soft air puff
• IMAGEnet i-base connection

The TRK-1P is equipped with Topcon's well proven and exclusive Rotary Prism TechnologyTM, which ensures high accuracy and reliability. The Topcon TRK-1P can handle pupils as small as 2 mm

The TRK-1P software controls the amount of air required for each individual eye. Patients experience more comfort during the measurement. The included pachymetry function assists the practitioner in evaluating the IOP related data.

The large colour screen has a tilting mechanism and gives a clear overview of the selected procedure and the readings of both right and left eyes.

Product information


Auto Kerato-Refracto-Tonometer

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REF Measurement

Measuring range

Hyperopia: 0 to +22D (0.12D/0.25D steps)

Myopia: 0 to -25D (0.12D/0.25D steps)

Astigmatism: 0 to ± 10D(0.12D/0.25D steps)

Axial angle: 0 to 180º (1º /5º steps)

Minimum measurable pupil diameter

Ø 2.0mm

Target fixation

Auto fog system


Measuring range

Radius of corneal curvature: 5.00 to 10.00mm(0.01mm step)

Corneal refractory power: 67.50 to 33.75D (0.12D/0.25D steps)

(Proviso: cornealrefractive index = 1.3375)

Corneal astigmatic power: 0 to ± 10D

Corneal astigmatic axial angle: 0 to 180º (1º /5º steps)


Measuring range

0 to 30mmHg / 0 to 60mmHg





Color LCD monitor screen

PD measurement

Measuring range 85mm max., 1mm display unit

Measurement data display

Color LCD monitor screen

Measurement data recording

Built-in printer (10 measurements each of R/L eyes)

TV Monitor

6.5 type VGA color LCD monitor

External output terminal

RS-232x2, USBx1

Operating temperature

10º to 40ºC

Main body travel

Distance 40mm back/forth, 90mm sides, 30mm up/down


60mm up/down (Electric)