Advanced Eye and Vision Evaluations The University Hospitals Eye Institute provides clinical electrophysiological tests for t ... he evaluation of visual function. These tests objectively evaluate the function of the retina, optic nerve and the visual pathway from the eye to the visual cortex of the brain and are useful in determining both diagnosis and prognosis. They may also be used to monitor the progression of eye disease during treatment. Tests provided Full-field flash electroretinography (fERG): For retinal diseases which affect the outer and inner retina in both rod and cone pathways. Multifocal electroretinography (mfERG): For retinal diseases which affect the outer and inner retina in the cone pathway. Especially useful when the defects of the retina vary between regions. Pattern-reversal visual evoked potentials (pVEP) or Flash visual evoked potentials (fVEP): For diseases of the ganglion cell layer, optic nerve, and brain. Electrooculography (EOG): For diseases of retinal pigment epithelium. Specialists Minzhong Yu, Ph.D., MMed Director of Visual Electrophysiology Laboratory Department of Ophthalmology Email: minzhong.yu@case.edu read more