The ERK-5400 A is a high-technology autorefractor/keratometer that combines both functions in a single mode to accurately determine the refractive and keratometric properties of the human eye. Its 7-inch touchscreen, ergonomic joystick, and intuitive operation make it a top-tier diagnostic tool. Ideal for ophthalmology practices seeking efficiency, precision, and comfort for both the physician and the patient.
Auto Refractometer/Keratometer
The ERK-5400 A makes measurement very simple by determining the refractive and keratometric properties of the human eye. This high-technology instrument reports the patient’s assessed ocular power in a single step, combining the functions of an auto refractometer and keratometer in one unified mode. Furthermore, the remarkable precision and advanced features of the ERK-5400 A allow physicians to collect detailed data on patients’ eyes more quickly and deliver higher-quality care.

Specialized Tests for Personalized Care
Tests can be specifically tailored to each patient through a variety of configurations. Perform autorefraction on each eye with REF Mode, record K readings and corneal curvature with KER Mode, or combine refractometry and keratometry measurements through the R/K configuration. CLBC Mode is used to determine the appropriate base curve and diameter for the correct fitting of contact lenses, while the Extended Diopter Mode provides specialized readings for dioptric powers of up to +22.00D or as low as -25.00D.
Comfort and Simple Operation
Mechanically, the main body slides smoothly from right to left and from front to back thanks to an improved sliding base design. Built with the highest quality materials, the Ezer 5400 is constructed with stability and safety in mind. The ergonomic joystick, the highly customizable user interface, and the intuitive operation of the ERK-5400 A provide the professional with a top-tier diagnostic tool, enabling efficient work even during extended diagnostic sessions.
Superior Quality in a One-Touch Scanning System
Once the eye is focused, by pressing the joystick button or using the Auto-Shot operation, the refraction result can be obtained immediately. Manufactured with the highest quality materials, the Ezer-5400 A is built with unparalleled usability, stability, and safety.
Precise Measurement for a Quality Examination
Save time by establishing a baseline for refractive error while simultaneously measuring corneal curvature and pupillary distance. For patient-specific testing, refractometry and keratometry can be performed together or split into separate scans. It features illumination functions developed to observe the corneal surface in both cataract patients and contact lens wearers. For a more precise result, the device accounts for and displays the vertex distance between the patient and the measurement window.
Patient Comfort with a Distinctive Touch
Adjust the chinrest height by simply turning a knob, along with an ergonomic and easy-to-use joystick. The fixation mires guide the user for proper eye positioning and better evaluation of the patient’s vision. An external mark on the device directs the examiner to the correct chinrest height, while the system interface clearly details the external eye for precise alignment. Smoothly slide the device from side to side and back and forth thanks to the improved sliding base design.

Maximum Usability at the Touch of a Screen
Equipped with a 7-inch color LCD touchscreen, the ERK-5400 A simplifies the acquisition of refractive error measurements. Navigate screen to screen through intuitive menus to view previous scans and histograms. With just a touch of the screen, measure, print, and delete patient readings effortlessly.
Integrated Printer
A built-in printer allows the user to make a paper copy of the individual readings and averages for clinician use and patient charting.

Network Connectivity
The ERK-5400 A is designed to connect with digital phoropters for greater accessibility. The implementation of the complete product suite allows users to perform a fully digital eye examination in a comfortable and efficient manner, saving time and money in the practice. Perform tests with the confidence of having the most reliable and accurate information for your patient, wherever you need it and whenever you need it.

World-Class Technology for Visual Care
As one of the largest private distributors of ophthalmic and medical equipment in North America, Central America, and South America, US Ophthalmic offers only the highest quality instruments, furniture, and tools, backed by unmatched service for customers worldwide.
Our products, developed with precision engineering, deliver superior value and efficiency for every visual care practice.
Specifications
| Vertex Distance (VD) | 0.0, 0.4, 0.5, 0.53, 0.6 in / 0.0, 10.0, 12.0, 13.5, 15.0 mm |
|---|---|
| Sphere (SPH) | -25.00 ~ +22D (DV 0.5 in / 12 mm) / Unit: 0.12 / 0.25 D |
| Cylinder (CYL) | 0.00 ~ ±10.00D / Unit: 0.12 / 0.25 D |
| Axis (AXIS) | 1 ~ 180° / Unit: 1° |
| Cylinder Shape | Negative, Positive, Mixed |
| Pupillary Distance (PD) | 0.4 ~ 3.4 in / 10 ~ 85 mm |
| Minimum Pupil Diameter | Ø 0.07 in / Ø 2.0 mm |
| Radius of Curvature | 0.2 ~ 0.5 in / Unit: 0.0005 in (5.0 ~ 10.2 mm / Unit: 0.01 mm) |
| Corneal Power | 33.00 ~ 67.50D / Unit: 0.12 / 0.25 D |
| Corneal Astigmatism | 0.00 ~ -15.00D / Unit: 0.12 / 0.25 D |
| Corneal Diameter | 0.08 ~ 0.5 in / Unit: 0.004 in (2.0 ~ 12.00 mm / Unit: 0.1 mm) |
| Storage Memory | 10 measurements per eye |
| Internal Printer | Thermal Printer |
| Display | 7.0-inch color TFT LCD touchscreen monitor |
| Chinrest Movement | Max. 65 mm |
| Operating Environment | Temperature: +10°C ~ +40°C, Humidity: 30% ~ 90% RH, Atmospheric Pressure: 70 kPa ~ 106 kPa |
| Storage Environment | Temperature: -40°C ~ +70°C, Humidity: 10% ~ 95% RH, Atmospheric Pressure: 50 kPa ~ 106 kPa |
| Electrical Power Supply | AC 100V ~ 240V, 50/60 Hz |
| Power Consumption | 60 - 90 VA |
| Dimensions | 10(W) x 19(D) x 19(H) in / 248(W) x 476(D) x 473(H) mm |
| Weight | 46.2 lb / 21 kg |























