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Oculomotor and Oculovestibular Functions in a Hemispherectomy Patient
Bruno Estañol, MD;
Ramon Romero, MD;
Manuel Sáenz de Viteri, MD;
Jose Humberto Mateos, MD;
Jorge Corvera, MD
Arch Neurol. 1980;37(6):365-368.
Abstract
• Oculomotor and oculovestibular functions in a patient who had undergone a left hemispherectomy were examined under a variety of visual and vestibular stimuli. The main findings were an inability to hold left eccentric gaze, resulting in gaze-evoked nystagmus to that side; inaccurate saccades to the right; defective smooth pursuit to the left; asymmetrical vestibulo-ocular responses (VOR) in the dark due to the interaction of the VOR with the "spasticity of conjugate gaze"; decreased gain of the visuo-vestibulo-ocular reflexes to both sides, more marked to the right, when rotated fixating on a stationary wall target or the environment, due to abnormal smooth and optokinetic systems; and failure to inhibit the VOR when rotated to the left with visual fixation.
Author Affiliations
From the Departments of Neurology (Drs Estañol and Mateos), Neuro-otology (Drs Romero and Corvera) and Neuro-ophthalmology (Dr Sáenz de Viteri), General Hospital, National Medical Center, and the National University of Mexico, Mexico City.
Footnotes
Accepted for publication June 6, 1979.
Reprint requests to Sierra Gorda 160, Mexico 10, DF, Mexico (Dr Mateos).
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