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Abstract
Chronic intracranial hypertension (IH) can lead to visual impairment in an estimated 25% to 50% of those afflicted. Optic nerve sheath decompression (ONSD) or fenestration has been shown to be an effective form of vision preservation with improvement in visual acuity (VA) and visual fields (VF). The purpose of this study was to examine the role of underlying etiology in IH, examine factors related to IH treatment paths, and preoperative factors leading to a successful outcome in VA and VF after ONSD intervention.