What causes optic nerve tumors?
What causes an optic nerve / optic pathway glioma? It is not known what causes a brain tumour generally, but research has identified that around 50% of optic nerve gliomas diagnosed in children and teenagers are associated with a genetic condition called Neurofibromatosis 1 (NF1).
What is an optic tumor?
Optic nerve tumors are growths that occur on the optic nerve. The majority of these tumors are benign, but some are highly malignant and can be very dangerous if left untreated.
What are the symptoms of a tumor behind the eye?
Tumors may form in the eye or around the eye, including behind the eye.
Some of the most common symptoms include:
- Bulging of the eye, usually without pain.
- Swelling of the eye.
- Changes in vision or vision loss.
- Eye redness.
- Burning or itching in the eye.
- The feeling that something is in the eye.
How is an optic nerve tumor diagnosed?
- Computer Tomography (CT) scans.
- Magnetic resonance imaging (MRI) scans.
- Optic nerve glioma.
- Optic nerve and chiasm glioma.
- Optic chiasm glioma extending into the hypothalamus.
Can a tumor behind the eye be removed?
Treatment: There are various ways to treat eye tumors, depending on the diagnosis, size and aggressiveness of the tumor, and other factors. Certain small tumors may respond to laser treatment or freezing (cryosurgery). In some instances, it is possible to remove a tumor surgically and still preserve vision.
Can you have surgery on your optic nerve?
Optic nerve decompression surgery (also known as optic nerve sheath decompression surgery) involves cutting slits or a window in the optic nerve sheath to allow cerebrospinal fluid to escape, thereby reducing the pressure around the optic nerve.
How do you treat an optic nerve glioma?
Most often, optic nerve glioma is treated with chemotherapy — a drug treatment that works by interfering with the cancer cell’s ability to grow or reproduce — to shrink the tumor and stabilize or improve vision.