Objective To investigate the changes of oscillatory potentials (OPs) of electroretinogram (ERG) and pattern electroretinogram (P-ERG) in sub-clinical stage of diabetic retinopathy.

• 目的探讨视网膜电图振荡电位(OPs)和图形视网膜电图(P-ERG)在亚临床期糖尿病视网膜病变中的变化特点,并比较振荡电位和图形视网膜电图检测糖尿病患者视网膜功能异常的敏感性。