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目的：探讨眼眶外壁骨折的临床特点并评价ＣＴ检查对其诊断价值。方法：以１５５例眼眶外壁骨折为研究对象，均行眼眶横断及冠状位ＨＲＣＴ检查。结果：眶外壁骨折受伤原因以车祸最多，失明者达５６．７７％，还可表现为眼球运动受限、眼球内陷等。眼眶外壁分为四段，以前三段骨折多见，且多波及颧骨蝶骨缝，造成骨缝分离移位；后段骨折少见，但失明发生率却明显高于其它各段（Ｐ＜０．０１）。单纯眶外壁骨折少见，仅占２１．２９％；外壁骨折伴发邻近骨折占７８．７１％，多伴发其它眶壁骨折。结论：ＨＲＣＴ检查是诊断眶外壁骨折较好的方法，眼部创伤后应及时行ＣＴ检查。
Objective: To investigate the clinical features of orbital wall fractures and evaluate the diagnostic value of CT. Methods: A total of 155 cases of orbital fractures of the orbital wall were selected as the study objects. All patients underwent orbital transection and coronal HRCT examination. Results: The causes of orbital fracture were the most among the victims of car accidents, with blindness reaching 56.77%. The eye movement was also restricted and the eyeball was retracted. Orbital wall is divided into four sections, the first three sections of the fracture more common, and more spread to the zygomatic spondylolisthesis, resulting in the separation and migration of the suture; posterior segment fractures rare, but the incidence of blindness was significantly higher than the other segments (P <0 .01). Simple orbital wall fractures rare, only 21.29%; wall fracture with adjacent fractures accounted for 78.71%, and many associated with orbital fracture. Conclusion: HRCT examination is a better method to diagnose orbital wall fracture. CT examination should be performed in time after trauma to the eye.