[Objective] To observe the therapeutic effect of puerain with corticosteroid on nonanterior ischmic optic neuropathy (NAION).[Methods] In 58 patients(60 eyes)who were diagnosed as NA10N,29 patients (30 eyes)underwent intravenous drip with puerain and corticosteroid (treatment group);and the other 29 patients (3o eyes)underwent intravenous drip with corticosteroid and compound anisondine (control group).[Results] The visual acuity was better in treatment group than that in control group with a significant difference (x2=4.83,P