The present role of magnetic resonance imaging in neuro-ophthalmology.

At present, MR imaging is recommended as the primary imaging procedure in investigating neuro-ophthalmic disease of the orbit, chiasm, brain stem, optic radiations and craniocervical junction and in any lesion suspected to contain a hematoma. MR imaging and CT are complementary in investigating disease of the paranasal or cavernous sinus. MR imaging is contraindicated in disease of the orbit when there is any possibility of a metalic foreign body and when there are metalic clips on intracranial vascular structures, such as aneurysms. The field of imaging is rapidly changing. The evolution of MR imaging and the expansion of our knowledge may soon relegate these recommendations to the file of early indications.