Objective To investigate the datum of electroretinogram(ERG) oscillatory potentials(OPs)and color vision in patients with diabetic retinopathy(DR) in early stage.

• 目的 探讨早期糖尿病视网膜病变 (diabetic retinopathy,DR)患者视网膜电图 (electroretinogram ,ERG)振荡电位 (oscillatory potentials,OPs)和色觉监测的指标。