Purpose: To investigate feasibility and recording conditions of recording rod on and off responses in electroretinograms (ERG) and multifocal electroretinograms (mf-ERG), and observe character and influence factors of these responses.

• 目的:研究全视野视网膜电图(electroretinogram,ERG)和多焦视网膜电图(multifocal eletroretinogram,mf-ERG)视杆细胞ON和OFF反应记录条件并分析其波形特征。