Objective: To observe the changes of visual evoked potential (VEP) in diabetic rats and the influence of nerve growth factor (NGF) and aminoguanidine (AG) on VEP.

• 摘要目的：观测糖尿病大鼠视觉诱发电位(VEP)的改变以及神经生长因子(NGF)和氨基胍(AG)对其的影响。