Optic nerve sheath meningioma is a benign (not malignant) tumor which involves the covering of the optic nerve. Meningiomas (along with gliomas and pituitary tumor) are the most common tumors inside the skull.

• Optic Nerve Sheath Meningioma – Patient Informational Brochure (NANOS)
• Optic Nerve Sheath Meningioma – Materials from the NOVEL collections
• Medline MeSH search on Optic Nerve Sheath Meningioma