Isolated cyclovertical muscle palsy.
Isolated cyclovertical muscle palsy.
复制标题
孤立性旋转肌麻痹。
DOI：
10.1001/archopht.1958.00940081047008
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发表时间：
1958
期刊：
影响因子：
--
通讯作者：
M. Parks
中科院分区：
文献类型：
--
作者：
M. Parks
在垂直平面上围绕赤道横轴移动眼睛的每一块肌肉也围绕前后轴作扭转运动(图1)。其中一块肌肉的异常表现为综合的旋转垂直斜视或斜视。旋转垂直肌肉收缩产生的眼球运动的性质取决于眼睛的水平位置。在外展位置，垂直肌在垂直面上移动眼睛，斜面在扭转面上移动。在内收中，垂直肌扭转，斜肌垂直。垂直直肌和斜肌在主要位置都产生垂直和扭转的联合作用；然而，垂直直肌的作用更垂直，而斜肌的作用更扭转。因此，单个环垂肌的无力主要表现为垂直和扭转的偏斜。
Each of the muscles that move the eye in a vertical plane about the transverse equatorial axis also renders a torsional movement about the anterior-posterior axis (Fig. 1). An abnormality of one of these muscles is manifest by a combined cyclovertical phoria or tropia. The nature of eye movement produced by a cyclovertical muscle contraction depends upon the horizontal position of the eye. In the position of abduction, the vertical recti move the eye in the vertical plane and the obliques, in a torsional plane. In adduction, the vertical recti act torsionally and the obliques, vertically. Both the vertical recti and the obliques deliver a combined vertical and torsional action in the primary position; however, the action of vertical recti is somewhat more vertical whereas the action of the obliques is more torsional. Weakness of a single cyclovertical muscle is characterized therefore by vertical and torsional deviation in the primary