Ocular symptoms
  Number Before surgery After surgery Recurrence
Meningioma 10 10 10 2
Hemangioma 9 7 4 1
Osteoma 3 2 0 0
Glioma n.II 3 3 3 0
Pleomorphic adenoma of the lacrimal gland 2 2 0 0
Neuroma 2 2 2 0
Total 29 26 19 3
Table 2: Benign tumors of the orbit. Preoperative visual acuity in meningiomas, gliomas of the optic nerve and neuromas.VA=0.5-0.1. In the others VA was 1.0.