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  • Title: Visual improvement and pain resolution in traumatic optic nerve sheath meningocele treated by optic nerve sheath fenestration.
    Author: Hui C, Xiaoyun W, Yi L, Ningbo C, Xizhong Q, Shaowei Y, Wei L, Maozhu Z, Wubo M, Xuefei P, Li L, Haibin T, Daiwen Z, Yong J.
    Journal: Restor Neurol Neurosci; 2014; 32(5):655-61. PubMed ID: 25001039.
    Abstract:
    PURPOSE: There is no consensus as to the optimum treatment for traumatic optic neuropathy (TON). The decision to intervene medically or surgically, or simply observe was recommended to be on an individual basis. The purpose of this study is to test whether optic nerve sheath fenestration (ONSF) could improve vision in patients with traumatic optic nerve sheath meningocele, although it was reported to be effective in patients with traumatic optic nerve sheath hematoma. METHODS: ONSF was performed on two traumatic patients with dilated optic nerve sheath from MRI. RESULTS: Both patients initially suspected as traumatic optic nerve sheath hematoma were diagnosed as traumatic optic nerve sheath meningocele by intraoperative findings of the enlarged optic nerve sheath and clear fluid drained without evidence of blood in the subdural space. Moreover, significant orbit/head pain resolution and visual improvement within a week after ONSF was found. CONCLUSIONS: When TON presents with an enlarged optic nerve/sheath on CT or MRI with visual loss, an optic nerve sheath meningocele should be considered with the consideration that ONSF may benefit both visual acuity and post-traumatic pain, if present.
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