Sudden visual loss due to posterior ischemic optic neuropathy following craniotomy for a ruptured intracranial aneurysm.

The authors report a rare case of acute ipsilateral blindness that occurred after a standard fronto-temporal craniotomy for aneurysm in supine position. Posterior ischemic optic neuropathy caused by external pressure on the ipsilateral eye, its differentials and subsequent medico-legal implications are discussed.