[Electrophysiological tests in the assessment of visual disorders].
Some electrophysiological tests are helpful in the assessment of visual disorders. The physiological basis, technical aspects and general indications of those available at most neurophysiology services are reviewed. The Full-Field electroretinogram reflects photoreceptor and inner retinal function. The Pattern electroretinogram assesses retinal ganglion cell function and can identify macular dysfunction mimicking optic nerve disease. The electro-oculogram is a test of function of the outer retina and retinal pigment epithelium; it differentiates Best's disease from all other bestrophinopathies. Visual evoked potentials evaluate the visual pathway and are especially helpful in the evaluation of the optic nerve.
Iragui-Madoz
M I
MI
Servicio de Neurofisiología Clínica, Hospital Virgen del Camino, Pamplona, 31008, Spain. miraguim@cfnavarra.es
D004585:Electrooculography; D004596:Electroretinography; D005074:Evoked Potentials, Visual; D006801:Humans; D014786:Vision Disorders / Q000175:diagnosis*