Opposed adducting saccades in convergence-retraction nystagmus: a patient with sylvian aqueduct syndrome.
Opposed adducting saccades in convergence-retraction nystagmus: a patient with sylvian aqueduct syndrome.
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会聚-回缩性眼球震颤中的反向内收眼震：侧裂导水管综合征患者。
DOI：
10.1093/brain/102.3.497
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发表时间：
1979
期刊：
影响因子：
--
通讯作者：
Donald D' Amico
中科院分区：
文献类型：
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作者：
Alfred L. Ochs;Lawrence Stark;W. F. Hoyt;Donald D' Amico
我们报告了一位患有会聚性回缩性眼球震颤（帕里诺氏征）的患者的高分辨率眼图记录。记录显示相对的内收扫视稍微异步（8 毫秒），而共轭水平扫视则完全同步（0.3 毫秒）。这些相对内收的正常扫视速度必然意味着水平和垂直激动剂-拮抗剂对的相互神经支配。横向电影胶片显示没有回缩，这显然是正常轨道力学的结果。我们认为，动态超调眼跳的正常机制参与了这些异常反向内收眼跳的产生。
We report high resolution oculographic recordings on a patient with convergent-retraction nystagmus (Parinaud's Sign). Recordings show opposed adducting saccades which are slightly asynchronous (8 ms), in contrast to the conjugate horizontal saccades which are exactly synchronous (0.3 ms). Normal saccadic velocity of these opposed adductions necessarily implies reciprocal innervation of horizontal and vertical agonist-antagonist pairs. Lateral view cine films show absence of retraction, apparently as a consequence of normal orbital mechanics. We suggest that normal mechanisms for dynamic overshoot saccades are involved in the production of these abnormal opposed adducting saccades.