Jane Lisa Weissman MD, Presenter: Nothing to Disclose

1) Master a tailored review of the normal anatomy and function of the globes, the optic nerves, and the intracranial vision pathways; and of the extraocular muscles and their cranial nerves. 2) Recognize pathology (and normal variants) of these structures on CT and MR. 3) Understand what the clinicians want to know. 4) Apply both new and familiar imaging techniques to solve clinical questions about the orbits and vision, with special attention to cranial nerves II, III, IV, and VI.

The visual pathway begins with the eyelids and extends back to the brain. Between these lie the globes, the optic nerves, the optic chiasm, the optic tracts and the optic radiations. A tailored review of the normal anatomy will facilitate recognition of pathology and of normal variants. Normal anatomy will be compared to pathology, to emphasize how they are similar and how they differ. Clear, simple clinical information will accompany the many CT and MR examples of pathology. Disorders of the extraocular muscles may also present as visual pathology. Therefore, the course will conclude with a brief, focused review of the rectus and oblique muscles and their innervation (cranial nerves III, IV, and VI), seen on normal and abnormal CT and MR studies.

Weissman, J, Orbit, Optic Pathways, and Vision Loss.  Radiological Society of North America 2007 Scientific Assembly and Annual Meeting, November 25 - November 30, 2007 ,Chicago IL. http://archive.rsna.org/2007/4402619.html