The Electroretinogram and Electro | 合法醫療器材資訊網

由DJCreel著作·被引用6次—Theglobalorfull-fieldelectroretinogram(ERG)isamasselectricalresponseoftheretinatophoticstimulation.TheERGisatestusedworldwidetoassessthe ...

Donnell J. Creel

1. Introduction

Electrophysiological testing of patients with retinal disease began in clinical departments in the late nineteen forties. Under the influence of the Swedish pioneers, Holmgren (1865) and Granit (1933), the electroretinogram was being dissected into component parts and early intraretinal electrode studies were beginning to tell which cells or cell layers gave rise to the various components. A detailed discussion of the electroretinogram, or ERG as it is commonly abbreviated, is found in the accompanying chapter by Ido Perlman. A little after the introduction of the ERG as a test of the state of the patient’s retina, another diagnostic test called the electrooculogram (EOG) was introduced to the clinic (Arden et al., 1962). The EOG had advantages over the ERG in that electrodes did not touch the surface of the eye. The changes in the standing potential across the eyeball were recorded by skin electrodes during simple eye movem...