Ropper A H
Arch Neurol. 1981 May;38(5):297-9. doi: 10.1001/archneur.1981.00510050063010.
Patients with anoxic coma had a cyclic, downward dipping motion of the eyes. The sign is different from ocular bobbing, seizure-related eye deviation, oculogyric crisis, and roving eye movement. Its distinguishing characteristics are slow downward with rapid upward movement, a nadir at the extreme of downgaze, and spontaneous roving horizontal eye movements. Based on necropsy findings in one case and lesions of the basal ganglia evident on computerized tomographic scan in another, it is proposed that cortical dysfunction with damage to the basal ganglia may cause ocular dipping.
缺氧性昏迷患者眼部出现周期性的向下 dipping 运动。该体征不同于眼球摆动、癫痫相关的眼球偏斜、动眼危象和游动性眼球运动。其显著特征为缓慢向下并快速向上运动、向下凝视至极低点时出现最低点以及自发的水平游动性眼球运动。基于一例尸检结果以及另一例计算机断层扫描显示的基底神经节病变，有人提出皮质功能障碍伴基底神经节损伤可能导致眼球 dipping。
