眶上裂综合征包括有眼球突出、眼肌麻痹、眶后区痛、瞳孔固定、散大、上睑下垂及三叉神经眼支分布区麻木、角膜反射丧失等症状的疾患。是由于眶上裂内的组织包括第三、四、六和第五颅神经的第一支以及眼静脉受压或破裂所引起。这种压力可能是由于肿瘤、动脉瘤、出血或感染所产生,而破裂通常是外伤所致。眼肌在正常时有一个小的拉力,使眼球向后,当眼肌麻痹时,向后的拉力消失,眼球突出。眼肌麻痹是由干在眶上裂中的第三、四、六颅神经受压或破裂所致。三叉神经的眼支损伤可引起该支的神经痛和眶后疼痛。瞳孔固定、散大是由于支配虹膜自主运动的副交感神经受损所致。动眼神经的上支 Superior orbital fissure syndrome, including prominent eyes, ophthalmoplegia, orbital area pain, pupil fixation, scattered, ptosis and trigeminal nerve branch distribution numbness, corneal reflex loss and other symptoms of disease. Is caused by compression or rupture of the first branch of the third, fourth, sixth, and fifth cranial nerves within the superior orbital fissure and the ophthalmic vein. This pressure may be due to tumor, aneurysm, hemorrhage or infection, and rupture is usually caused by trauma. Ophthalmogram in the normal time there is a small pull, so that the eye backwards, when the eye muscle paralysis, the backward tension disappears, the eyeballs prominent. Ocular paralysis is caused by compression or rupture of the third, fourth, and sixth cranial nerves that dry in the superior orbital fissure. Injury to the branch of the trigeminal nerve can cause neuralgia and retroorbital pain in the branch. Pupil fixation, scattered is due to autonomic iris control parasympathetic damage caused. Ocular nerve upper branch