Pretectal eyelid retraction and lag.

Galetta, S L; Gray, L G; Raps, E C; Schatz, N J · Ann Neurol · 1993

case_report · Level V

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Abstract

We report 2 patients who had eyelid retraction and eyelid lag with minimal impairment of vertical gaze. In both patients, magnetic resonance imaging demonstrated a circumscribed unilateral lesion immediately rostral and dorsal to the red nucleus involving the lateral periaqueductal gray area. Our clinical and radiological findings support the existence of a premotor eyelid control center in the region of the nucleus of the posterior commissure.

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