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Ezer ERK-5400 Autorefractor Keratometer

  • Ezer ERK-5400 Autorefractor Keratometer
  • Ezer ERK-5400
  • Ezer ERK-5400
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Product Description

Ezer ERK-5400 top quality Autorefractor Keratometer provides accurate measurements with convenience and quality.
Featuring European design and several specialty features, Ezer’s ERK-5400 is a superb addition to eye care practice. With the ERK-5400 you can perform refractometry and keratometry alone or consecutively in a single mode. You can also measure corneal diameter and contact lens base curve. A temperature control chip and focusing control software ensure precise measurements every time. The ERK-5400 also features a 7-Inch Color LCD as well as an Internal Thermal Printer. Best of all, the ERK-5400 can communicate with your entire practice. For the highest level of efficiency, combine the ERK-5400 with Ezer’s other diagnostic instruments to form an Ezer Digital Refraction Practice. Ezer digital practice platforms make it possible to perform a full digital vision exam, from pretest to Rx.

Features of the ERK-5400

▪ Auto Refractor/Keratometer
▪ Wide Dioptric Measurement Range
▪ Corneal Measurement and Contact Lens Base Curve Measurement
▪ Enhanced Illumination Imaging
▪ Focusing Control Software
▪ Temperature Sensor
▪ European Design     
▪ 7-Inch Color LCD
▪ Internal Thermal Printer
▪ Easy, Comfortable Operation
▪ Aiming Target
▪ Communication Interface
▪ Easy Network Capability
▪ Backed by an Industry Leading 2-Year Warranty!

Auto Refractor/Keratometer
With the ERK-5400 you can perform refractometry and keratometry alone or consecutively in a single mode.

Wide Dioptric Measurement Range
The ERK-5400 covers an impressive measurement range of -25.00D to +22.00D.

Corneal Measurement and Contact Lens Base Curve Measurements
With the ERK-5400, you can measure the size of the cornea and determine contact lens base curve.

Illumination Mode
The Illumination mode in the ERK-5400 is very helpful in determining ocular health.

Focusing Control Software
In the event that the operator misfocused while measuring the patient's eyes, the software automatically adjusts the data to produce an accurate measurement result.

Precise Temperature Sensors
A temperature control chip detects the internal temperature with each measurement to ensure precise data.

European Design
The ERK-5400 is sleek, compact and modern.

7-Inch Color LCD
All measurement data and programming is clearly displayed in color on the 7" LCD.

Internal Thermal printer
The ERK-5400 is equipped with a conveniently located automatic printer.

Easy, Comfortable Operation
Mechanically, the main body moves smoothly from right to left and forward to backward.
Aiming target
A clear target increases measurement data accuracy.


Measurement Mode

K/R Mode Successive Keratometry & Refractometry

REF Mode Refractometry

KER Mode Keratometry

CLBC Mode Contact Lens Base Curve Measurement


Vertex distance (VD) 0, 0.4, 0.5, 0.51, 0.53, 0.6 in (0,10, 12,13, 13.5, 15 mm)

Sphere (SPH) -25.00 ~ +22.00 (At the vertex distance of 12 mm) (Increments selectable between 0.12 and 0.25D)

Cylinder (CYL) -0.00 ~ +/-10.00D (Increments selectable between 0.12 and 0.25D)

Axis(AX) 0 ~ 180° (Increments: 1°)

Cylinder Form - + - +

Pupil Distance (PD) 0.4 ~ 3.34 in (10 ~ 85 mm)

Minimum Pupil Diameter 0.08 in / 2.0 mm

Measurement Time 0.07 sec


Radius of Curvature 0.2 ~ 0.4 in (5 ~ 10.2 mm) (Increments: 0.0004 in / 0.01 mm)

Corneal Power 33.00 ~ 67.50D
(When cornea equivalent refractive index is 1.3375)
(Increments selectable from 0.12, 0.25D)

Corneal Astigmatism 0.00 ~ - 15.00D
(Increments selectable from 0.12, 0.25D)

Axis (AX) 1~180°

Corneal Diameter 0.08 ~ 0.5 in (2.0 ~ 12.0mm) (Increments: 0.004 in / 0.1mm)


Internal Printer Thermal Line Printer

Power Saving Selectable 3, 5, 10 min

Display 5.6-inch color TFT LCD monitor

Power Supply AC100~240V, 50/60Hz , 90W

Power Consumption Approximately 100VA

Dimension / Weight 9.8(W) X 18.8(D) X 18.7(H) in / 46.2 lbs (248(W) X 476(D) X 475(H) mm / 21 Kg)

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