[Prospects for radiotherapy of optic nerve meningioma]

32 patients with meningioma of the optic nerve, undergone gamma-teletherapy were followed up. The mean total focal dose was 35 Gy. 24 patients were follow-up for 1-8 years. Gamma-, therapy was shown to be the method of choice for treatment of meningiomas in the retrobulbar part of the optic nerve. It permits one to stabilize growth of the tumor, to preserve and, in number of casetelet to elevate the acuity of vision. The decline of acuity of vision was noted only in 3 cases within 6-12 months after the completion of radiotherapy. Even low initial acuity of vision and signs of atrophy of the optic nerve cannot be a ground for pessimistic prediction in relation to the results of treatment.