



HTR-1A
Auto Ref/Keratometer, Non-contact Tono/Pachymeter
4-in-1 integrated ophthalmic device for refraction and IOP measurement, and more
- 4 in 1 System : Full Auto Ref/Keratometer, Non-contact Tono/Pachymeter
- Compact Design
- Full Auto Tracking & Shooting
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4 in 1 System
HTR-1A has the Cornea Thickness, IOP, and Refractive Power which are essential functions for Eye Clinic, it can measure the indispensable data for the Customized Lens prescription
Compact Design
By compact design and size, HTR-1A is possible to save users' space. 4 measurements from 1 device, patients don't need to move their places and it can save their time as well
Full Auto Tracking & Shooting
As long as the measuring point is placed in the automatic tracking range, it can trace and shoot the pupil measuring point by the 3D drive mechanism. By clicking the button once will be measured the binocular precisely and efficiently
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Specifications
1. Refractive power measurement
Distance between vertex of cornea (VD)
0.0, 12.0, 13.75, 15.0
Spherical prescription (SPH)
-30.00 ~ +25.00 D (VD = 12 mm) (0.01/0.12/0.25 D unit)
Astigmatism prescription (CYL)
0.00 ~ ±12.00D (0.01/0.12/0.25 D unit)
Astigmatism axis angle (AX)
0 ~ 180° (1° unit)
Astigmatism indication
-, +, MIX
Pupil distance (PD)
10 ~ 85 mm
Minimum pupil diameter that can be measured
Ø2.0 mm
** The accuracy specifications are based on the results of eye model testing preformed in accordance wit h ISO10342.
2. Cornea curvature radius measurement
Corneal curvature radius
5.0 ~ 13.0 mm (0.01 mm unit)
Cornea refractive power
25.96D~67.50D (cornea equivalence’s refractive index: 1.3375) indication unit: 0.05/0.12/0.25D unit
Cornea astigmatism prescription
0.0 ~ -15.00 D (Increments: 0.05/0.12/0.25 D)
Cornea astigmatism axis angle
0 ~ 180° (1°/ 5° unit)
Cornea diameter measurement
2.0 ~ 14.0 mm (0.1 mm unit)
** Keratometry is in accordance with TypeB, ISO 103432014.
3. IOP measurement
IOP range
1 ~ 60 mmHg
SPC 30 / SPC 60, 30 / 60
Measurement increment
1 mmHg (Average : 0.1 mmHg)
Accuracy
±5.0 mmHg
4. Corneal thickness measurement
CCT measurement range
300 ~ 800 μm
Measurement increment
1 μm
Accuracy
±10.0 μm (in case of The calibration Model eye)
5. Wireless I/F
Protocol
IEEE802.11b 2.4GHz WiFi
Security mode
WPA2-PSK
IP configuration
DHCP mode
6. Auto travel distance
Up & Down
83 mm (±3 mm) : Total
RK Mode / NT Mode
40 mm (±5mm)
Right & Left
90 mm (±2 mm)
Front and back
40 mm (±2 mm)
7. Automatic tracking scope
Up & Down
± 5 mm
Right & Left
± 5 mm
Front and back
± 5 mm
8. Chin rest travel distance
Up & Down
65 mm (±3 mm)
9. Data memory
10 session worth of measurement values for each of the eyes on the left and right
10. Interface
RS-232C
USB
Internal Software Update from PC (Engineer Only)
Ethernet
Wifi
Ext. VIDEO
11. Hardware specs
Built-in printer
Thermoelectric line printer/Auto Cutting
Power-saving function
Key power is blocked when the measurement is stopped up the set time. Recovered when pressing on the button or when the screen is touched.
Monitor
85° Tiltable 7” Color LCD IPS Panel (800*480), Resistive Touch panel
Dimensions
301(W) x 535(D) x 506(H) mm
Weight
23.8 Kg
Power supply
AC100-240, 50/60Hz, 0.6-0.9A, 144VA(Max.)
* Specification and design are subject to change without notice.
FAQ
Q. What kind of device is the HTR-1A?
A. The HTR-1A is a “4-in-1” system that integrates an Auto Refractometer (Ref), Auto Keratometer, Non-contact Tonometer, and Non-contact Pachymeter into a single device. By reducing patient movement during examinations, it allows patients to undergo multiple tests quickly and conveniently at one station, while improving the consistency and accuracy of clinical data.
Q. Please explain the auto-tracking and auto-shooting functions of the HTR-1A.
A. The HTR-1A features Full Auto Tracking & Shooting, which automatically tracks the pupil position and captures measurements with a single button press. Its three-dimensional drive mechanism automatically recognizes the measurement point and precisely aligns with the pupil, enabling fast and stable data acquisition without the need for repositioning. This significantly improves examination speed and enhances user convenience.
Q. What are the advantages of the HTR-1A’s design and interface?
A. The HTR-1A features a compact design that allows examinations to be performed at a single location without requiring the patient to move between devices, reducing clinical workflow and saving time. Its slim size makes it suitable even for small spaces, and the intuitive, icon-based user-friendly interface is designed for easy operation, even for inexperienced users.
Q. How is the data measured by the HTR-1A used?
A. Data measured by the HTR-1A—including refractive power, corneal curvature, and pupil size—are used for pre- and post-refractive surgery evaluation and customized lens prescriptions. In addition, with automatic contact lens fitting assessment, Smart Puffing Control, and corneal-thickness-compensated IOP data, it supports patient-specific diagnostics related to intraocular pressure, corneal thickness, and ocular disease risk.
Q. Can HTR-1A data be integrated with hospital systems?
A. Yes. The HTR-1A is compatible with hospital EMR charts and allows direct data integration. It supports multiple communication methods—including Ethernet, Wi-Fi, and RS-232C—enabling easy data transfer to electronic medical record (EMR) systems.





