optic neuroma symptoms
Definition of Â«Optic neuromaÂ». Optic neuroma: A slow-growing benign tumor of the optic nerve. Optic gliomas are associated with neurofibromatosis type 1 (NF1), can lead to partial or complete loss of vision, painless bulging of the eye, and headache, and are treated by surgical excision (removal) or, if too extensive, by radiotherapy.