近3年来,我院收治眼球穿通伤共72例,其中异物残留44例,眼球壁附近异物11例。眼球壁附近异物情况较复杂,手术难度较大,要求术前定位必须精确。除常规X 线定位外,均采用B 型超声仪定位,介绍如下。采用美国产sonomed new A/B—3000扫描仪,频率10MHz。显示方法B,A 和A/B 任选。取仰卧位,闭眼,涂耦合剂,分别以垂直和水平方向探出眼轴断层图像。然后左右转动寻找异物,当发现可疑异 Nearly 3 years, our hospital received a total of 72 cases of penetrating through the eye, of which 44 cases of foreign body residues, foreign body near the wall of the eye in 11 cases. Near the wall of the eyeball foreign body more complex, difficult operation, requiring preoperative positioning must be accurate. In addition to conventional X-ray positioning, the use of B-type ultrasound positioning, introduced below. US-made sonomed new A / B-3000 scanner, the frequency of 10MHz. Display methods B, A and A / B are optional. Supine position, eyes closed, coated with coupling agent, respectively, in vertical and horizontal direction out of the ocular axial tomography. Then turn around looking for foreign objects, when found suspicious