Ezer – Auto Refractor Keratometer – ERK-5400

Ezer ERK-5400 is a high quality Autorefractor Keratometer that provides precise and consistent measurements quickly and efficiently.
Ezer’s ERK-5400 is a excellent addition to eye care any practice looking to add great value to their practice. The ERK-5400 will provide auto refraction and keratometry, measures corneal and pupil diameter, retro illumination for detecting lenticular opacities. Alignment is easy through the 7-Inch Color LCD. And for even greater efficiency, the ERK-5400 can be integrated with EZER’s Digital Refraction system to stream line the refraction process while providing a comfortable and agronomical working environment for the doctor.

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autorefractor keratometer erk-5400 ezer - us ophthalmic

Auto Refractor/Keratometer

The ERK-5400 combines all of the features that you would expect in an Auto Refractor/Keratometer in a smartly designed instrument. The instrument is easy to use, quickly acquires the measurements, and will significantly enhance your practices efficiency, especially when integrated with the EZER Digital Refraction system.

autorefractor keratometer erk-5400 ezer - us ophthalmic

7 inch Colored Touch LCD

A measurement data and various functional program show in color thru a high clear and precise 7 inch Touch Wide LCD Screen.

Comfort and Easy Operation

Mechanically the main body moves smoothly right to left and forward to backward owing to the improved design for a base sliding structure.

Communication Interface

A data communication available among the related diagnostic devices by RS-232 and USB.

autorefractor keratometer erk-5400 ezer - us ophthalmic

Internal Printer

Convenient printing-paper provision and minimized printer problem.

autorefractor keratometer erk-5400 ezer - us ophthalmic

Convenient User Menu Setting

The menu screens are designed by the pages so that could switch setting more easily and faster.

Additional information

K/R Mode

Successive Keratometry & Refractometry

REF Mode


KER Mode


Vertex distance (VD)

0, 0.4, 0.5, 0.53, 0.6 in

Sphere (SPH)

-25.00 ~ +22.00 D (0.12 D / 0.25 D)

Cylinder (CYL)

-0.00 ~ +/-10.00D


0 ~ 180° (Increments: 1°)

Cylinder Form

– + – +

Pupil Distance (PD)

0.4 ~ 3.34 in (10 ~ 85 mm)

Minimum Pupil Diameter

0.08 in

Radius of Curvature

0.2 ~ 0.4 in

Corneal Power

33.00 ~ 67.50D

Corneal Astigmatism

0.00 ~ – 15.00D
(Increments selectable from 0.12, 0.25D)

Axis (AX)


Corneal Diameter

0.08 ~ 0.5 in

Internal Printer

Thermal Line Printer

Power Saving

1 – 10 minutes (Step 1 minute)


7-inch color TFT LCD monitor

Power Supply

AC100~240V, 50/60Hz , 60-90W

Chinrest Movement

Manual, Max 55mm

Data Out-put

RS-232 Interface, USB

Dimension / Weight

9.8(W) X 18.8(D) X 18.7(H) in / 46.2 lbs





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