Huvitz HTG-1D

See the Full Picture of Corneal Health

The HTG-1D is an integrated solution that combines corneal topography and dry eye diagnosis into a single device, enabling a comprehensive assessment of overall ocular health. Rather than managing two separate instruments — with separate workflows, separate data, and separate footprints — your team can capture everything in one efficient examination.

Examinations that previously required two separate instruments can now be completed with the HTG-1D alone, significantly improving the overall examination workflow.

Precise Corneal Analysis Powered by Placido Disc Technology

The HTG-1D uses Placido disc analysis technology to precisely measure corneal data including keratometry, topography, keratoconus screening, Zernike coefficients, pupillometry, and white-to-white measurements. Results are presented as Axial, Tangential, Refractive Power, and Elevation Maps. Huvitz

This rich dataset supports a wide range of clinical applications:

• Keratoconus Detection By examining the cornea's front curvature, regional shape, convexity, and eccentricity, the HTG-1D calculates a KPI (Keratoconus Prediction Index) to help predict the likelihood of keratoconus at the earliest stages. MedicalExpo
• Aberration Analysis Through Zernike Coefficient analysis, the HTG-1D measures refractive power variations, irregular astigmatism, and aberrations in the eye. Coburntechnologies
• Pupillometry Pupil size and responsiveness are evaluated under various lighting conditions — day and night — with results displayed graphically including pupil diameter, maximum average, and average pupil diameter. Coburntechnologies
• White-to-White Measurement Automatic corneal size measurements support diagnosis and monitoring of conditions such as congenital glaucoma, and assist with planning for cataract and refractive surgery, as well as contact lens selection and fitting. Coburntechnologies
• Contact Lens Fitting Simulation A built-in simulator accurately replicates fitting results for both hard and soft contact lenses using a Fluorescein Image Filter — no fluorescent liquid injection required. Coburntechnologies

Advanced Dry Eye Diagnosis

Dry eye is one of the most common — and most complex — conditions in eye care. The HTG-1D goes well beyond a simple "dry or not dry" assessment. Dry eye is diagnosed from multiple angles based on indicators including tear film secretion evaluation, tear film stability assessment, meibomian gland dysfunction analysis, tear film distribution, color and pattern evaluation, blink interval measurement, corneal and conjunctival redness levels, and the OSDI self-assessment questionnaire. Huvitz

Because treatment options differ depending on the underlying cause, accurate diagnosis supports more reliable dry eye management, reduces unnecessary interventions, and plays a major role in improving patient satisfaction. Huvitz

All dry eye examinations are performed non-contact, reducing patient discomfort and enabling personalized treatment planning supported by clear, visualized reports.

Designed for the Clinical Environment

The HTG-1D is built with both the clinician and the patient in mind.

A 90-degree rotating LCD, foot switch, wide headrest, auto-tracking, and sound guidance provide an optimal examination environment. The built-in PC allows seamless monitoring of the entire process — from measurement through to detailed analysis reports. Huvitz

Connectivity & Integration The HTG-1D integrates with standard DICOM networks and is compatible with the Huvitz HIIS-1, so examination data can be conveniently accessed and reviewed directly from a PC. Huvitz

Clinical Applications at a Glance

The HTG-1D is well-suited for a broad range of practice settings and diagnostic needs, including:

• Pre- and post-operative evaluation for refractive and cataract surgery
• Early keratoconus detection and monitoring
• Dry eye subtype identification and treatment planning
• Contact lens fitting and simulation
• Irregular astigmatism and high-order aberration analysis
• Pupil assessment for refractive surgery planning

Why Choose the HTG-1D?

Efficiency — Replace two instruments with one, reducing chair time and simplifying your workflow.

Depth — Go beyond surface-level measurements with Zernike analysis, KPI scoring, and eight-indicator dry eye assessment.

Reliability — Huvitz's Placido disc technology delivers consistent, high-accuracy data you can trust for critical clinical decisions.

Connectivity — DICOM compatibility and HIIS-1 integration fit seamlessly into modern, connected practices.