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Updated: Aug 16, 2026
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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
Performance of community-based glaucoma screening using Frequency Doubling Technology and Heidelberg Retinal
Todd A Robin1, Andreas Müller, Julian Rait
1Centre for Eye Research Australia, University of Melbourne, 32 Gisborne Street, East Melbourne, Victoria 3002, Australia.
Ophthalmic Epidemiology
|July 23, 2005
Summary
A new glaucoma screening algorithm combining visual acuity, family history, Frequency Doubling Technology (FDT), and Heidelberg Retina Tomography (HRT) demonstrates high accuracy in the general population.
Area of Science:
- Ophthalmology
- Public Health
Background:
- Glaucoma is a leading cause of irreversible blindness worldwide.
- Early detection and intervention are crucial for managing glaucoma and preventing vision loss.
Purpose of the Study:
- To evaluate the effectiveness of a novel community-based glaucoma screening algorithm.
- To determine the performance of the algorithm in identifying glaucoma in the general population.
Main Methods:
- A cohort of 659 adults aged 50-90 years underwent screening.
- Assessments included presenting visual acuity, family history of glaucoma, Frequency Doubling Technology (FDT) perimetry, and Heidelberg Retina Tomography (HRT).
- A full ophthalmic examination served as the gold standard for diagnosis.
Main Results:
- The integrated screening strategy achieved a sensitivity of 96.8% and specificity of 89.7%.
- Positive predictive value was 31.9%, and negative predictive value was 99.8% for glaucoma detection.
- The algorithm demonstrated strong performance in identifying individuals with glaucoma.
Conclusions:
- A community-based glaucoma screening algorithm combining visual acuity, family history, FDT, and HRT is highly sensitive and specific.
- This algorithm offers a promising tool for widespread glaucoma detection in the general population.
- Early identification through this method can facilitate timely treatment and potentially reduce glaucoma-related vision impairment.
