HEIDELBERG HRT3 RETINA TOMOGRAPH
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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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• Progression analysis validated with 10 years of patient data
• Optic disc analysis outperforms expert interpretation
• Large, ethnic-selectable databases
• Asymmetry analysis
• Upgradeable platform
• Network ready
Larger, Ethnic-Selectable Databases Improve Diagnostic Accuracy
The HRT3 is the only imaging device with distinct databases for individual ethnic groups. Currently available databases feature Caucasian, African and Indian (Southeast Asian) ethnic groups, with Hispanic and Asian databases coming soon.
Complete CUP, RIM, & RNFL Analysis Provides a Comprehensive Assessment of Structure
The best performing parameters are highlighted and adjusted for optic disc size. Studies have shown that most ethnic differences are due to variations in optic disc size.
Optic Disc Size Measurement and Classification Alerts the Clinician to Unusual Disc sizes which are typically more difficult to diagnose. The optic disc size is displayed both by measurement and by classification into small, average, or large categories.
Asymmetry Analysis uses OU Databases to Look for OD/OS Differences and may detect suspicious cases when comparing the patient's own eyes to each other instead of relying exclusively on normative data. Asymmetry is often one of the first signs of pathology.
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