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Updated: Jun 28, 2025
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Optical Coherence Tomography: Imaging Mouse Retinal Ganglion Cells In Vivo
Published on: September 22, 2017
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Understanding Patterns of Preserved Retinal Ganglion Cell Layer in Advanced Glaucoma as Seen With Optical Coherence
Anna J Sun1, Gabriel Gomide1, Emmanouil Tsamis2
1Columbia University Vagelos College of Physicians and Surgeons.
Journal of Glaucoma
|April 10, 2024
Summary
Advanced glaucoma damages the central retinal ganglion cell layer in varied patterns. These patterns align with a macular progression model, aiding clinical assessment and trial design for preserving vision.
Area of Science:
- Ophthalmology
- Neuroscience
Background:
- Advanced glaucoma involves significant damage to the retinal ganglion cell (GCL) layer.
- Understanding GCL damage patterns is crucial for predicting disease progression and visual field loss.
Purpose of the Study:
- To investigate the patterns of preserved retinal ganglion cells in advanced glaucoma using optical coherence tomography (OCT).
- To correlate observed GCL damage patterns with a model of macular progression.
Main Methods:
- OCT GCL thickness was measured in 94 eyes with advanced glaucoma (mean deviation worse than -12 dB).
- GCL thickness was analyzed in 6 sectors around the fovea, categorized as within normal limits (green), mildly reduced (yellow), or severely reduced (red).
Main Results:
- All eyes exhibited abnormalities in at least one GCL sector; 55% had all sectors severely reduced.
- 33 eyes showed some sectors within normal limits, displaying diverse damage patterns.
- 61% of hemiretinas demonstrated a temporal-to-nasal progression of damage, consistent with the proposed model.
Conclusions:
- The central, donut-shaped GCL region is invariably affected in advanced glaucoma.
- Observed damage patterns, though varied, are consistent with a model of macular progression.
- Findings inform clinical identification of macular progression and trial criteria for vision preservation therapies.
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