Optic Canal Decompression With Endoscopic Under The Image Navigation And Clinical Analysis

Object：Traumatic optic neuropathy (TON) is a severe sequel after maxillofacialtrauma. Recent clinical experience has suggested that optic canal decompression isbeneficial in the treatment of TON. To analyze optic canal decompression withendoscopic under the image navigation and summarize our clinical experience inTON.Method：With the advent of endoscopy in the nasal, we extended this techniqueto decompress the optical canal and reported its outcome. This technique was appliedto10patients of TON with corticosteroids treatment. The average age of the patientsat the time of injury was28years. Four patients presented preoperative vision of lightperception (LP) or better and6patients had no light perception (NLP). Surgery wasperformed within1week of injury in6patients, between1and2weeks in2patients,and between2and3weeks in2patients. The average follow-up time was9months.Result：Vision improved in6patients including2patients (33.3%) with NLP andin4patients (66.7%) with LP or better. The endoscopic under the image navigationtechnique successfully decompresses the optic canal and improves visual acuity withminimal morbidity. Younger patients had a significantly better visual outcome.Conclusion：Intranasal endoscopic surgery for repairing of traumatic opticneuropathy (TON) is a safe, minimally invasive and more effective method. Nowintranasal endoscopic surgery is the first choice for TON therapy.