Visual Evoked Potential (VEP) & Electroretinogram ERG
Electrodiagnostic technology at our office is used to look for any problems in the neuropathways from the eye to the Visual cortex. The Diopsys VEP measures how long it takes a signal to travel from the eye to the brain, and how strong the signal is when gets there. Any defects in the Optic nerve or anywhere in the optic neuropathways deter the signal. The ERG however is used mores specifically to diagnose Glaucoma by testing the retinal activity in response to a stimulus. Both are painless tests and provide significant data.