

HTG-1
Full Corneal Optical Topographer
Comprehensive corneal health diagnosis combining topography and dry eye assessment into one solution
- Comprehensive Corneal Health Management Solution
- Integrated Corneal Analysis Solution Based on Precision Data
- Comprehensive Dry Eye Diagnosis Solution Through Multi-Angle Analysis
- Smart Solution Providing an Optimal Examination Environment
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Comprehensive Corneal Data Acquisition
HTG-1 utilizes Placido Disc analysis technology to precisely measure various corneal data, including keratometry, topography, keratoconus detection, Zernike coefficients, pupillometry, and white-to-white distance. The measurement results are provided in multiple forms, such as axial, tangential, refractive power, and elevation maps, which are useful for assessing corneal shape and health, prescribing vision correction lenses, and planning cataract surgery.
















Multi-Angle Comprehensive Dry Eye Diagnosis
Based on various indicators such as tear secretion and stability evaluation, meibomian gland dysfunction analysis, tear film distribution, color and pattern assessment, blink interval measurement, corneal and conjunctival redness grading, and the OSDI self-assessment questionnaire, it provides a multi-faceted diagnosis of dry eye syndrome. Non-contact precision measurements and visualized reports enable accurate cause analysis and personalized treatment planning.
Easy and Convenient, from Operation to Analysis
With a 90-degree left-right rotating LCD, foot switch, wide headrest, auto-tracking, and sound guidance, HTG-1 offers an optimal examination environment that enhances operator convenience. The built-in PC enables seamless monitoring of the entire process—from measurement to analysis reports — for accurate evaluation. Compatibility with HIIS-1 and DICOM further improves clinical efficiency.



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Specifications
1. Measurement Specification
Parameter
Measuring range
Corneal curvature radius
3 – 38mm
Cornea refractive power
9D~110D (Cornea equivalence’s refractive index: 1.3375)
Direction of principal meridians
Measuring range: 0° – 180°, Accuracy: according to the ISO 10343:2014
White-to-white distance
7 – 14mm
Pupil diameter
0.5 – 10mm
Working distance
80 ~ 100 mm
Placido disc
24 rings
Points Analyzed
Over 100,000 (Measured points:Over 6,220)
Accuracy & Repeatability
Type A according to the ISO 19980:2012
Measuring range
up to Ø 9,8 mm (on a 8 mm sphere) 42,20D with n=1.3375
2.Common
Display
Swiveling & Tiltable 10.1 inch, Touch panel color LCD
Horizontal movement
55 mm (back and forth), 100 mm (left and right)
Vertical movement
30 mm
Chinrest movement
62 mm (up and down), motorized
Auto tracking
X,Y for positioning, Z for working distance
Power supply
AC 100–240 V, 50/60 Hz, 1.6–0.7 A
PC
Built in computer
Dimensions
312(W) x 553(D) x 518(H) mm
Mass
19 kg
3.Software Features
Topography
Keratoconus
Contact lens fitting
Zernike Analysis
Pupillometry
White To White
Lipid Layer
Tear Meniscus Height
NIKBUT
Meibomian
Redness
Questionnaire(OSDI)
Keratoscopy(Fluorescein & Imaging)
* Specification and design are subject to change without notice.





