Abstract
This article summarizes the anatomy of brainstem tracts and cranial nerves as depicted by magnetic resonance imaging, with special emphasis on the structures that are involved in the control of eye movement. It discusses the anatomical structures that can be observed on conventional magnetic resonance images as well as structures that can only be observed using more advanced imaging techniques such as diffusion tensor imaging and tractography. The basic mechanisms of various kinds of ophthalmoplegia are also discussed.
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