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目的分析眼部异物的B超表现形式及产生原因。方法眼部异物行B超检查34例，其中8例已行异物摘出术。结果8例术后眼均发现视网膜脱离或与球壁粘连的玻璃体机化膜，另26眼中玻璃体异物占53．9％，晶状体异物占15．4％，眼球壁异物占26．9％，眶内异物占3．8％。异物在B超检查时主要表现为强回声光点，可出现尾随回声，声影和假性隆起等伪像。结论伪像的出现可支持异物的诊断，也可引起误诊。
Objective To analyze the B ultrasound manifestations of ocular foreign bodies and their causes. Methods Thirty-four cases of B-ultrasound were performed on ocular foreign bodies, of which 8 cases had foreign body extirpation. Results In all 8 eyes, vitreous organized membrane with retinal detachment or adhesion to the wall was found. In the other 26 cases, vitreous foreign body accounted for 53.9%, lens foreign body accounted for 15.4%, ocular wall foreign body accounted for 26.9%, orbital Foreign matter accounted for 3.8%. Foreign body in the B-ultrasound mainly for the strong echo of light spots, there may be traced echo, sound artifacts and false bumps and other artifacts. Conclusion The appearance of artifacts can support the diagnosis of foreign body can also cause misdiagnosis.