Walsh & Hoyt: Summary of Neuro-Ophthalmologic Signs of Unruptured Intracranial Saccular Aneurysms

Neuro-ophthalmologic signs are among the most important focal neurologic manifestations of unruptured intracranial saccular aneurysms. It must be remembered, however, that aneurysms that become symptomatic because of direct interference with the function of adjacent neural and vascular structures are much less common than are aneurysms that become symptomatic when they rupture. About 90% ofintracranial aneurysms become symptomatic when they bleed into the subarachnoid space or into the substance ofthe brain.