爆裂性眶壁骨折是指直径大于眶口的暴力作用于眼眶 ,使眶内压急剧增高 ,通过力学传导使眼眶薄弱部分发生骨折 ,常使眶内软组织通过骨折处嵌入副鼻窦腔内。因眶下壁并非一平面 ,斜向下向外 ,承受压力大 ,最易骨折。眶内壁为菲薄的筛骨板 ,也易发生骨折。本文就 3例眶壁爆裂性骨 Bursting orbital fracture refers to the diameter greater than orbital orifice violence in the orbit, the orbital pressure increased dramatically, through the mechanical conduction of fractures of the orbital weakness, orbital soft tissue often embedded in the paranasal sinus cavity through the fracture. Due to the infraorbital wall is not a plane, oblique downward, under pressure, the most vulnerable to fracture. Orbital wall for the meager ethmoid plate, but also prone to fracture. In this paper, 3 cases of orbital blowout bone