The causes of orbital emphysema are very abound.The most common cause is blunt trauma;most of them lead to fractures of the paranasal sinuses.

• 摘要眼眶积气的原因有很多，但大部分的原因是因为眼球遭受钝器撞击，使眼眶内压增加，导致眼眶内侧壁及副鼻窦发生骨折。