Our multifocal visual electrophysiology examining system simulates veris system . we have analyzed functions provided by veris system and basic principles of the system . we have divided the system into several modules and then designed each part seperately 本多焦视觉电生理检查系统是在了解veris4 . 0多焦视觉电生理仪所实现的功能的基础上,分析其基本工作原理,重新进行了系统设计。