Lewis R F, Zee D S, Repka M X, Guyton D L, Miller N R
Department of Neurology, Johns Hopkins University School of Medicine, Baltimore, MD 21218, USA.
Vision Res. 1995 Dec;35(23-24):3255-64. doi: 10.1016/0042-6989(95)00026-b.
Ocular alignment and saccades were studied in seven patients with trochlear nerve pareses, before and after strabismus surgery. Prior to surgery, a position-dependent vertical ocular misalignment was present, and downward saccades were hypometric in the paretic eye. Strabismus surgery reduced the magnitude and position-dependence of the static misalignment. Saccade conjugacy improved in the patients with congenital pareses, and in the patient with a gradual-onset acquired paresis, but less improvement occurred in subjects with traumatic pareses. The post-operative change in saccade conjugacy relative to the change in static alignment correlated with pre-operative vertical vergence, suggesting that changes in saccade yoking depend on an interaction between saccades and vertical vergence.
在斜视手术前后，对7例滑车神经麻痹患者的眼位对准和扫视运动进行了研究。手术前，存在与位置相关的垂直性眼位偏斜，患眼向下扫视运动幅度减小。斜视手术降低了静态偏斜的程度和对位置的依赖性。先天性麻痹患者和逐渐发生的后天性麻痹患者的扫视运动共轭性有所改善，但外伤性麻痹患者的改善较少。扫视运动共轭性的术后变化相对于静态对准的变化与术前垂直聚散度相关，表明扫视运动联带运动的变化取决于扫视运动和垂直聚散度之间的相互作用。
