Averbuch-Heller L, Stahl J S, Remler B F, Leigh R J
Department of Neurology, University Hospitals of Cleveland, OH 44106-5000, USA.
Ann Neurol. 1996 Sep;40(3):465-8. doi: 10.1002/ana.410400320.
Bilateral ptosis is reported with unilateral hemispheric lesions, suggesting partial lateralization of the control of the levator palpebrae superioris. There is a tight synkinesis between vertical eye and eyelid movements, but a similar, lateralized control of vertical gaze has not been previously described. We report 3 patients with right hemispheric infarctions, in whom bilateral ptosis was accompanied by impaired upward gaze. We postulate that this lateralization of ocular motor function reflects the special contribution that the nondominant hemisphere makes to attention.
据报道，单侧半球病变可出现双侧上睑下垂，提示上睑提肌控制存在部分侧化。垂直眼球运动和眼睑运动之间存在紧密的联带运动，但此前尚未描述过类似的垂直注视侧化控制。我们报告了3例右侧半球梗死患者，他们均出现双侧上睑下垂并伴有向上注视障碍。我们推测，这种眼球运动功能的侧化反映了非优势半球对注意力的特殊贡献。
