Optic glioma

  • Definition

    Gliomas are tumors that grow in various parts of the brain. Optic gliomas can affect:

    • One or both of the optic nerves, which carry visual information to the brain from each eye
    • The optic chiasm, the area where the optic nerves cross each other in front of the hypothalamus of the brain

    An optic glioma may also grow along with a hypothalamic glioma.

    Alternative Names

    Glioma - optic; Optic nerve glioma

    Causes, incidence, and risk factors

    Optic gliomas are rare. The cause of optic gliomas is unknown. Most optic gliomas are slow-growing and noncancerous (benign) and occur in children, almost always before age 20.

    There is a strong association between optic glioma and neurofibromatosis Type 1 (NF1).