HRT3 Glaucoma Module

A Powerful Predictor of Change


  • Validated by OHTS to predict structural change
  • Progression analysis validated with 10 year’s of patient data
  • Optic disc analysis outperforms expert interpretation
  • Large, ethnic-selectable databases
  • Asymmetry analysis
  • Upgradeable platform
  • Network ready

The Heidelberg Retina Tomograph (HRT) is a proven, essential tool for detecting and managing glaucoma, especially for assisting in the identification of pre-perimetric disease and tracking progression. The Ancillary Study to the Ocular Hypertension Treatment Study (OHTS) demonstrated that optic disc analysis detected glaucoma conversion in 55% of cases, before any detectable loss of visual function. The HRT has proved to be a robust predictor of glaucoma. OHTS also concluded that the HRT recognized temporal superior defects which later developed into confirmed glaucoma in 40% of cases - looking only at baseline measurements - then confirmed the diagnosis with an average of 5 years of follow-up. Equally impressive was that 93% of all HRT cases flagged as within normal limits at baseline remained within normal limits during the same time period

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Figure A.

The Ancillary Study to the Ocular Hypertension Treatment Study (OHTS) demonstrated that the HRT could outperform visual fields and expert opinion in predicting structural change in glaucoma.

Figure B.

The Moorfields Regression Analysis (MRA) has remained a robust indicator of structural change over 15 years and more than 400 clinical papers.