Electrodiagnostics

Expansion of the puzzle on electro-oculograms and electroretinograms to include visually-evoked potentials

photopic According to Dr. Yudcovitch, this type of skin resistance should be below 2 kOhms for electrodiagnostics

ganzfeld Important piece of equipment (shown in class) needed for flash ERG testing

focalERG On flash ERG, this peak has a smaller amplitude and latency

cornea A connective cell that allows ions to travel between the reintal layers

pigmentepithelium Takes 8 minutes or so to generate this EOG peak

mueller A macular scar will show up on this electrodiagnostic test

impedance The light rise divided by the dark trough on EOG

vitteliformdystrophy This is the only type of ERg that tests the ganglion cells

scotopic A retinal disease that will show an abnormal EOG and normal ERG

pattern A single layer of cells that greatly contributes to the standing potential of the eye

ardenratio This part of the eye that has a positive charge ( 6 mV in EOG)

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