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© 2004 American Academy of Neurology Brief Communications Vergence deficits in pontine lesionsFrom the Department of Neurology, University of Luebeck, Germany. Address correspondence and reprint requests to Dr. Holger Rambold, Department of Neurology, University of Luebeck, Ratzeburger Allee 160, D-23538 Luebeck, Germany; e-mail: rambold_h{at}neuro.mu-luebeck.de Eye movements were recorded with the search coil system in two patients to determine whether lesions of the pontine nuclei selectively impair vergence to ramp targets (slow vergence) or step targets (fast vergence). Whereas conjugate saccades were not different from healthy control subjects, conjugate smooth pursuit eye movements had a reduced gain in horizontal and vertical directions. Slow convergence and divergence were impaired, whereas fast vergence did not differ from that of control subjects. Pontine nuclei appear to be involved in the slow vergence control.
Received October 21, 2003. Accepted in final form January 7, 2004. This article has been cited by other articles:
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