视网膜主要由三群细胞构成。第一群是视细胞(杆细胞、锥细胞),其功能是光的接收;第二群是双极细胞、水平细胞和无足细胞,它们把视细胞和神经节细胞联系起来,起着网膜内信息处理中心的作用;最后一群是神经节细胞,形成网膜的输出。由于微电极技术及其它技术的发展,对细胞电反应的发生机制和各级细胞的突触传递机制的研究十分活跃,是目前视觉生理研究的一个中心课题。本文 Retina is mainly composed of three groups of cells. The first group is the visual cells (rod cells, cone cells), whose function is to receive light; the second group is bipolar cells, horizontal cells and lack of cells, they visual cells and ganglion cells linked to play a network The role of the membrane information processing center; the last group is the ganglion cells, the formation of the output of the omentum. Due to the development of microelectrode technology and other technologies, the research on the mechanism of the cellular electrical response and the synaptic transmission mechanism at all levels is very active, which is a central issue in the current research of visual physiology. This article