Daroff_01-7 Normal Vertical Eye Movements

Identifier: Daroff_01-7 Title: Normal Vertical Eye Movements Subject: Normal Vertical Eye Movements; Vertical Saccades; Description: The brain stem pathway for vertical saccades involves the PPRF, rostral interstitial nucleus of the medial longitudinal fasciculus (riMLF), nucleus of Cajal, and the nuclei of cranial nerves III and IV. For upgaze, projections from the riMLF traverse through the posterior commissure, whereas there are direct downgaze projections from the riMLF to cranial nerve nuclei III and IV. These differences explain why lesions causing upgaze paralysis are less specific to a particular region than those causing downgaze paralysis. This video is part of the Daroff Collection in NOVEL, the Neuro-Ophthalmology Virtual Education Library. Please cite the source when using this video. NOVEL.utah.edu Copyright 2010. For further information regarding the rights to this collection, please visit http://library.med.utah.edu/NOVEL/about/copyright