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Updated: May 21, 2026

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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
Evaluating objective and subjective quantitative parameters at the initial visit to predict future glaucomatous
Allison K Ungar1, Gadi Wollstein, Hiroshi Ishikawa
1UPMC Eye Center, Eye and Ear Institute, 203 Lothrop St., Pittsburgh, PA 15213, USA.
Summary
Structural imaging like optical coherence tomography (OCT) can predict glaucoma progression. Baseline OCT superior quadrant retinal nerve fiber layer thickness was the strongest predictor of visual field changes in glaucoma patients.
Area of Science:
- Ophthalmology
- Medical Imaging
- Glaucoma Research
Background:
- Glaucoma is a leading cause of irreversible blindness.
- Early detection and prediction of glaucoma progression are crucial for timely intervention.
- Structural imaging plays a role in assessing glaucoma severity and predicting disease advancement.
Purpose of the Study:
- To evaluate the predictive ability of baseline structural imaging parameters for glaucomatous visual field progression.
- To compare the predictive power of different imaging modalities: stereophotography, OCT, and CSLO.
- To identify specific structural parameters most effective in forecasting visual field decline.
Main Methods:
- 119 eyes with suspected or confirmed glaucoma underwent baseline stereophotography, OCT, and CSLO.
- Follow-up structural and visual field data were collected over a median of 4.0 years.
- Generalized estimating equation models were used to determine odds ratios for progression prediction.
Main Results:
- Fifteen eyes progressed by glaucoma progression analysis, 20 by visual field index, and 10 by both.
- Baseline parameters from stereophotographs, OCT (global, superior, inferior RNFL thickness), and CSLO were significant predictors.
- The superior quadrant retinal nerve fiber layer thickness from OCT emerged as the single best predictor of progression.
Conclusions:
- Baseline structural measurements from stereophotographs, OCT, and CSLO show clinical utility in predicting visual field progression in glaucoma.
- OCT, particularly the superior quadrant RNFL thickness, demonstrates strong potential for forecasting glaucoma development.
- These findings support the integration of advanced imaging techniques into routine glaucoma monitoring.
