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Pattern ERG is a vital test to look at ganglion cells, says OD

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BOSTON – Here at Optometry’s Meeting, Nathan Lighthizer, OD, FAAO, discusses Diopsys ERG, which provides information about the inner retinal cells of the eye, as well as the Visual Evoked Potential (VEP), which measures the functional responses of the visual pathway.

“VEP and Pattern ERG detects when cells are struggling or dysfunctional -- they aren’t dead, but they aren’t functioning as they should," he said. "The ability to detect stressed out cells is very useful so that you can then lower the stressor, maybe by lowering the pressure in glaucoma, maybe it’s education in macular degeneration or stopping a medication. When you can jump on the treatment earlier, patients have better outcomes.”