Waller P Y, Chossegros C, Semeria E, Gola R
Service de Stomatologie et de Chirurgie Maxillo-faciale et Plastique de la face, Hôpital Nord, Marseille.
Rev Stomatol Chir Maxillofac. 1991;92(4):237-46.
Traumatic ptosis is most often secondary to a fasciomuscular lesion of the levator system. Less frequently, it results from the paralysis of the levator muscle due to an injury to the third pair of cranial nerves. This ptosis is observed in comminuted orbital fractures or fractures of the base of the skull involving the orbital apex, and it is then associated with oculomotor paralysis. In favorable cases seen early, repairing surgery of the levator system produces excellent results. When associated with ophthalmoplegia or corneal anesthesia, neurogenic ptosis requires a watch and wait policy.
外伤性上睑下垂最常见于提上睑肌系统的筋膜肌肉损伤。较少见的是，由于第三对脑神经损伤导致提上睑肌麻痹而引起。这种上睑下垂见于眼眶粉碎性骨折或累及眶尖的颅底骨折，此时常伴有动眼神经麻痹。在早期发现的有利病例中，提上睑肌系统修复手术效果极佳。当伴有眼肌麻痹或角膜感觉缺失时，神经源性上睑下垂需要采取观察等待策略。
