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Assessing Early Stage Open-Angle Glaucoma in Patients by Isolated-Check Visual Evoked Potential
Published on: May 25, 2020
A method to detect progression of glaucoma using the multifocal visual evoked potential technique.
Boonchai Wangsupadilok1, Vivienne C Greenstein, Fabio N Kanadani
1Department of Ophthalmology, Faculty of Medicine, Prince of Songkla University, Hat Yai, Songkhla, Thailand.
Documenta Ophthalmologica. Advances in Ophthalmology
|October 3, 2008
Summary
This study introduces a new method using multifocal visual evoked potential (mfVEP) to monitor glaucoma progression. The mfVEP technique effectively detects changes in visual field scores over time, aiding in glaucoma management.
Area of Science:
- Ophthalmology
- Neuroscience
- Medical Technology
Background:
- Glaucoma is a progressive optic neuropathy leading to irreversible vision loss.
- Accurate monitoring of glaucoma progression is crucial for timely intervention and treatment adjustments.
- Current methods for glaucoma progression assessment have limitations.
Purpose of the Study:
- To evaluate the utility of multifocal visual evoked potential (mfVEP) for monitoring glaucoma progression.
- To establish a reliable method for detecting changes in visual field parameters over time in glaucoma patients.
Main Methods:
- Eighty-seven open-angle glaucoma patients were divided into short-term (Group I, <50 days) and long-term (Group II, >6 months) follow-up groups.
- Monocular mfVEPs were recorded using a 60-sector pattern reversal display.
- Total abnormal test points (total scores) and abnormal point clusters (cluster size) were analyzed for changes between visits.
Main Results:
- Group II showed significant changes in total scores and interocular cluster size between visits, indicating disease progression.
- Group I, with short-term follow-up, did not exhibit significant changes, confirming the test's stability for short intervals.
- mfVEP demonstrated sensitivity in detecting glaucomatous changes over longer periods.
Conclusions:
- Changes in total scores and cluster size over time using mfVEP offer a potential method for assessing glaucoma progression.
- mfVEP is a promising tool for longitudinal monitoring of glaucoma patients.
- This technique can aid clinicians in managing glaucoma by detecting disease advancement.
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