A 38-year-old man experienced double vision with pupillary abnormalities and convergence retraction nystagmus. A mass, which responded to radiation therapy, was seen as the cause of his dorsal midbrain syndrome. The neural control of vertical eye movements is reviewed and the management of a third ventricular-pineal region mass discussed.
5Neurological Surgery, University of Florida College of Medicine, Gainesville, Florida USA
Reprint address: M. Tariq Bhatti, MD, College of Medicine, University of Florida, Department of Ophthalmology, PO Box 100284, Gainesville, FL 32610-0284.
The authors reported no proprietary or commercial interest in any product mentioned or concept discussed in this article. Drs. Bhatti and Pincus gratefully acknowledge the assistance of David Peace, MS, Medical Illustrator, University of Florida Brain Institute, Department of Neurological Surgery. We also wish to express appreciation for the editorial assistance of Mabel Wilson. This mansucript was supported by an unrestricted departmental grant from Research to Prevent Blindness, Inc., New York, NY.
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