Abstract: The detection of mfERG，could help to consecutively record and test the wave of a great deal of local retinal electro-response in comparative short time，has satisfied the clinical application to a wide extent.As the crucial part of mfERG inspecting system，the mfERG figure stimulator sufficiently impersonates the record principle of mfERG and features in detecting of retinal signals.This paper mainly discusses a myriad of parameters of mfERG figure stimulator and control method of m-sequences.It presents concrete arithmetic and implementation of mfERG figure stimulator by adopting graph plotting and transform method in VC++ environment.

Key words: mfERG figure stimulator, hexagon array, m-sequences, plot transform

摘要： 多焦视网膜电图（mfERG）检测，可以在相对较短的时间内连续记录测试野多个局部视网膜电生理响应信号的波形，有着重要的临床应用价值。多焦ERG图形刺激器作为多焦ERG检测系统的关键部分，充分体现了多焦ERG的记录原理，对视觉电信号的检测起重要作用。对多焦ERG图形刺激器的各种参数及m-序列对图象的控制方式作了论述，通过VC++环境下绘图的基本知识及绘图变换算法，给出了具体的多焦ERG图形刺激器生成算法及实现。

关键词: 多焦ERG图形刺激器, 六边形阵列, m-序列, 绘图变换