Horizontal Gaze Palsy
Horizontal Gaze Palsy
Horizontal Gaze Palsy
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Signs in Leigh and Zee’s Case<br />
The patient was unable to move her eyes to the right<br />
past the midline using either saccadic or pursuit eye<br />
movements<br />
Head rotation to the left, however, drove the eyes past<br />
the midline, but the right eye abducted incompletely<br />
Vergence movements induced the left eye to cross the<br />
midline<br />
Vertical eye movements were normal<br />
<strong>Gaze</strong> evoked nystagmus was present on looking to the<br />
left, with slow phases toward the midline<br />
The patient developed a fascicular sixth nerve palsy
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