Optic nerve and orbital tumors

The close proximity of the orbit to the brain and the high frequency of ocu lar symptoms in patients with neurosurgical disease make it mandatory for n eurosurgeons to be familiar with manifestations of orbital disease. Tumors of the optic nerve and orbit are important causes of vision loss and eye mo vement abnormalities. Similarly, intracranial tumors frequently present wit h eye movement abnormalities, vision loss, and optic nerve swelling. This o verlap in the clinical characteristics of patients with orbital tumors and patients with neurosurgical problems makes familiarity with. the types of c linical presentation of various orbital tumors important to the neurosurgeo n. The history and examination of patients with orbital tumors are discusse d and the clinical presentation of various orbital tumors is presented.