1991—04月～1992—04我院共收治球内异物22例23只眼。男20例,女2例。其中除2例为铅质异物,其条全是磁性异物。年龄10岁～35岁。火器伤4例,工业外伤18例,弹弓伤2例。视力恢复到5.0以上者4例,4.9—4.6者10例,4.5以下4例,1米以外指数3例、无光感1例。视力下降到1米指数不能矫正者为盲占20％。浅谈致盲原因如下。 1 受伤性质及当时眼球损害程度;非磁性金属异物、伤眼组织损伤大时易致盲。如例1.男20岁,双眼被鸟枪击伤,铅弹从角膜正中进入,前房消失、积皿,瞳孔情况查不清,X线定位发现角膜后15mm9点方位有8mm×10mm异物,在异物取出后因球内出 1991 - April ~ 1992-04 in our hospital a total of 22 cases of foreign body ball in 23 eyes. 20 males and 2 females. In addition to 2 cases of lead foreign body, the article is all magnetic foreign body. Aged 10 to 35 years old. 4 cases of firearm injuries, 18 cases of industrial trauma and 2 cases of slingshot injuries. Visual acuity recovered to 5.0 or more in 4 cases, 4.9-4.6 in 10 cases, 4.5 in 4 cases, 1 meter away from the index in 3 cases, no light perception in 1 case. Visual loss to 1 meter index can not be corrected blind accounted for 20%. The reasons for blindness are as follows. 1 the nature of the injury and the extent of eye damage; non-magnetic metal foreign body injury eye injury prone to blinding. For example, a man and 20 years old, his eyes were shot gunshot wounds, lead bullets from the cornea into the middle, anterior chamber disappeared, the dish, the pupil check unclear, X-ray positioning 15mm9 point after the corneal position 8mm × 10mm foreign body, Foreign body out after the ball out