患者男，40岁，电焊工，于1996年8月2日下午6时许未戴防护罩焊接钢管约5分钟，晚10时突然感双眼剧烈疼痛，异物感、畏光、流泪。在乡卫生院诊为“双眼电光性限炎”，给予1％地卡因、氯霉素、醋酸可的松服液等治疗，2天后发现双眼视物不见，遂来我院就诊。视力右、左均为眼前光感1 Male, 40 years old, welder, at 6 pm on August 2, 1996 at 6 pm without a protective cover welded steel pipe for about 5 minutes, 10 at night suddenly felt severe pain in both eyes, foreign body sensation, photophobia, tearing. In the township hospital diagnosed as “binocular electro-optic limited inflammation ”, given 1% of dexamethasone, chloramphenicol, cortisone acetate solution treatment, two days later found that binocular vision disappeared, then came to our hospital. Right eyesight, left eyes are light perception 1