A 62-year-old male who presented with normal visual acuity and right optic disc swelling with an optociliary vein was suspected to have optic nerve sheath meningioma.

• 摘要一62岁男性病患因右眼视乳头水肿伴有视神经睫状静脉及正常视力而被怀疑忠有视神经鞘脑膜瘤。