Optic nerve sheath meningioma is a type of tumor that develops in the sheath of the optic nerve. It is a benign tumor, meaning it is non-cancerous, and is usually slow-growing. Symptoms of optic nerve sheath meningioma include vision loss, double vision, and headaches. Treatment options include radiation therapy, surgery, and observation.

The most common symptom of an optic nerve sheath meningioma is vision loss. Other symptoms may include:

- Blurred vision

- Double vision

- Loss of peripheral vision

- Loss of color vision

- Loss of contrast sensitivity

- Eye pain

- Headache

- Loss of balance

- Nausea

- Vomiting

- Seizures

- Weakness or Numbness in the face or limbs

Optic nerve sheath meningiomas are usually benign tumors that arise from the meninges, the protective covering of the brain and spinal cord. The exact cause of these tumors is unknown, but they are thought to be related to genetic and environmental factors. Possible risk factors include exposure to radiation, certain genetic conditions, and a family history of the condition.

The primary treatment for an optic nerve sheath meningioma is surgical removal. Depending on the size and location of the tumor, the surgeon may be able to remove the entire tumor or only part of it. In some cases, radiation therapy may be used to shrink the tumor before or after surgery. In some cases, chemotherapy may be used to reduce the size of the tumor before surgery.

1. Previous radiation therapy
2. Neurofibromatosis type 2
3. Familial history of meningiomas
4. Exposure to certain chemicals
5. Certain genetic mutations
6. Certain medical conditions, such as diabetes, hypertension, and autoimmune disorders

Yes, there are treatments available for Optic Nerve Sheath Meningioma. Depending on the size and location of the tumor, treatment options may include observation, radiation therapy, and/or surgery. Medications such as corticosteroids may also be used to reduce swelling and inflammation.