Seiff S R, Berger M S, Guyon J, Pitts L H
Am J Ophthalmol. 1984 Dec 15;98(6):751-5. doi: 10.1016/0002-9394(84)90693-7.
Using computed tomographic scans and reformatted images of the optic canal region, we were able to define osseous abnormalities in nine patients with sudden traumatic blindness resulting from indirect trauma to the optic nerve. Six patients had optic canal fractures, two had fractures of adjacent structures, and one patient did not have a fracture. Patients received corticosteroid therapy, surgical decompression of the optic canal, both types of treatment, or no specific treatment for the nerve injury. Although there was no correlation between the abnormality identified by computed tomography and treatment results, our findings provided further evidence that a canal fracture is not necessary for injury of the optic nerve to occur. We recommend that patients with sudden visual loss after blunt head trauma undergo a computed tomographic scan of the optic canal region.
通过使用计算机断层扫描和视神经管区域的重建图像，我们能够确定9例因视神经间接创伤导致突然性创伤性失明患者的骨质异常情况。6例患者存在视神经管骨折，2例有相邻结构骨折，1例患者没有骨折。患者接受了皮质类固醇治疗、视神经管手术减压、两种治疗方式都采用，或者未针对神经损伤进行特殊治疗。尽管计算机断层扫描所发现的异常情况与治疗结果之间没有相关性，但我们的研究结果进一步证明，视神经损伤并不一定需要存在神经管骨折。我们建议，钝性头部创伤后突然视力丧失的患者应接受视神经管区域的计算机断层扫描。
