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Recording the contralateral PERG: effect of different electrodes.
Investigative Ophthalmology & Visual Science
|November 1, 1983
Summary
Pattern electroretinogram (PERG) can be recorded with fellow-eye occlusion using specific electrodes. Corneal-type electrodes are recommended for PERG when the fellow eye remains unoccluded.
Area of Science:
- Ophthalmology
- Neuroscience
- Visual Electrophysiology
Background:
- Pattern electroretinogram (PERG) assesses retinal ganglion cell function.
- PERG recordings typically require fellow eye occlusion to isolate the stimulated eye.
Purpose of the Study:
- To investigate the occurrence of PERG with fellow eye occlusion.
- To determine the influence of different electrode types on this phenomenon.
Main Methods:
- PERG recordings were performed with the fellow eye occluded.
- Comparison of electrode types: Arden gold foil, ERG-Jet lens, and scleral lens electrodes.
Main Results:
- PERG was recordable with fellow eye occlusion using an Arden gold foil electrode.
- PERG was not recordable with fellow eye occlusion using ERG-Jet or scleral lens electrodes.
Conclusions:
- Fellow eye occlusion can elicit PERG with specific corneal-type electrodes.
- Corneal-type electrodes are suitable for PERG recordings when fellow eye occlusion is necessary.