see also: [[Ophthalmological terms and vocabulary]], [[pupil exam#pupil deviation|pupil deviation]], [[Cranial nerve palsies]], [[vertigo#HINTS exam|Vertigo → HINTS exam]] The Prévost's sign -- or Vulpian sign -- refers to conjugate eye deviation in patients with acute [[Stroke]]. - in **hemispheric stroke**, the eyes deviate ipsilaterally **towards** the stroke (i.e. contralateral to the hemeiparesis) due to involvement of the frontal eye fields. most pronounced with non-dominant hemisphere (usually right hemisphere) stroke - **thalamic stroke** usually results in conjugate gaze deviation **away** from the lesion and thus towards the side of hemiparesis. "wrong-way eyes."