Multifocal visual electrophysiology examining system is designed by erich . e . sutter recently , which records retinal bioelectric response to light stimulus . he stimulated different retinal regions by graphics and , at the same time , recorded mixed signals of response by a common electrode 他利用图形刺激器分别刺激视网膜的多个不同部位,用一个通道的常规电极纪录多个不同部位的混合反应信号,再经计算机程序处理,把对应于各部位的波形提取出来,并用一立