TERA Dry Eye Imager™

Corneal Analyzer + Dry Eye Diagnostic Suite

Exceptional Images. Smart Automation. For Confident Ocular Surface Evaluation.

TERA helps eye care professionals identify the underlying drivers of dry eye and ocular surface disease. Aligned with TFOS DEWS III recommendations, its non-invasive assessments – including tear meniscus height (TMH), non-invasive tear break-up time (NIBUT), blink analysis, lipid layer assessment, and meibography – support personalized care pathways and more targeted treatment decisions.

Streamline Workflow with Automation
Automated to delegate testing and save time in the exam lane.

Build Clinical Confidence
Designed to empower confident clinical decisions with data-driven insights following new DEWS III guidelines.¹

Fuel Practice Growth
Optimized to improve treatment acceptance and drive emerging revenue opportunities.

Key Features

  • CORNEAL ANALYSIS: Captures corneal topography, anterior corneal wavefront (Zernike) analysis, and white-to-white measurement in a single capture to support diagnosis and monitoring of corneal irregularity and guide custom contact lens fitting.
  • DYNAMIC AND STATIC PUPILLOMETRY: Measures pupil size, centration, and light response under various conditions to support diagnosis and patient discussions.
  • DRY EYE DIAGNOSTIC SUITE NON-INVASIVE TEAR BREAK-UP TIME (NIBUT): Automated capture of tear film stability for dry eye screening and diagnosis.
  • MEIBOMIAN GLAND IMAGING AND ANALYSIS: Visualizes and evaluates meibomian gland structure and loss.
  • HIGH-RESOLUTION COLOR IMAGING: Supports evaluation of blepharitis and conjunctival redness to aid diagnosis, documentation, and patient education.
  • PATENTED DIFFUSED WHITE LIGHT: Provides uniform illumination that minimizes glare and enhances image clarity, delivering clear visualization of the tear film lipid layer.
  • FLUORESCEIN IMAGING: Evaluates signs of ocular surface staining and enhances assessment of contact lens fit.
  • VALIDATED CLINICAL GRADING SCALES: On-screen access to clinically validated scales (Efron, JENVIS, Meiboscale, Guillon) ensures consistent evaluation, documentation, and patient communication.
  • INTEGRATED DRY EYE QUESTIONNAIRES (OSDI-6 and DEQ-5): Effectively capture patient-reported symptoms with validated dry eye questionnaires, including the OSDI-6 survey recommended by DEWS III guidelines.
  • TEAR MENISCUS HEIGHT: Quantifies tear volume to identify drivers of dry eye disease and assess aqueous insufficiency.


¹ Wolffsohn JS, Benítez-Del-Castillo J, Loya-Garcia D, et al. TFOS DEWS III Diagnostic Methodology. Am J Ophthalmol.

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Contact us today

Simply use the form below and your local Topcon Healthcare representative will be in touch soon, or call us at 1 800 361-3515. For technical support, please click here.  ​

TERA Dry Eye Imager™ Flyer