The pathophysiology of Traumatic Optic Neuropathy (TON) include a primary and secondary mechanism of injury. At present, no studies validate a particular approach to the management of TON. There are three management lines for these patients that include 1)observation only;2)medical treatment with high or megadoses of methylprednisolone; and 3)surgical intervention. Studies have shown that forces applied to the frontal bone and malar eminences are transferred and concentrated in the area near the optic canal. The tight adherence of the optic nerve's dural sheath to the periosteum within the optic canal is also thought to contribute to this segment of the nerve being extremely susceptible to the deformative stresses of the skull bones. In this study, investigators aim to make a randomized controlled trial to certify the efficiency of optic nerve canal decompression for TON patients.
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Amplitude and Latency of Visual-Evoked Potential
Timeframe: from trauma day to 60 days after trauma