有机磷农药在农业上应用十分广泛,在使用中屡有急性中毒病例的报导。但对其慢性中毒尚有争议,有人认为有机磷进入机体后的早期就被分解,所以不存在慢性中毒的可能。但石川等发现,长期应用有机磷制剂治疗眼肌无力,内斜视,青光眼等疾病时可发生慢性中毒。在慢性有机磷中毒患者中,视觉机能障碍的发病率较高,尤其在 Organophosphorus pesticides are widely used in agriculture, there are often reports of acute poisoning cases in use. But its chronic poisoning is still controversial, some people think that organic phosphorus into the body after the early decomposition, so there is no possibility of chronic poisoning. But Ishikawa found that long-term use of organic phosphorus preparations for the treatment of muscle weakness, esotropia, glaucoma and other diseases can occur when chronic poisoning. In patients with chronic organophosphate poisoning, the incidence of visual dysfunction is high, especially in