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从解剖观点看,滑车神经位于下丘水平大脑导水管腹侧与动眼神经核的外侧核相连,第三、四、六对颅神经共同管理眼球运动。由于其从中枢至外周的解剖关系均甚密切,病损时常数个同时受损,而单独滑车神经麻痹甚为罕见,笔者曾见一例,兹报导于下: 患者男,32岁,因复视38天入院。患者于38天前饮酒后夜间不慎跌倒,左侧头部先着地,左眼眶外侧跌伤,此后即现视物双象,视四方形为三角形,下楼梯时看不清,向右上看时视物比较清楚,向左下视模糊及复视。检查:躯体检查除发现左眼眶外侧有一0.3×3cm疤痕外,余无阳性体征发现。眼神经检查:右眼正
From an anatomical point of view, the trochlear nerve is located in the ventral lateral canal of the inferior colliculus and the lateral nucleus of the oculomotor nucleus, and the third, fourth, and six pairs of cranial nerves manage eye movement. Because of its central to peripheral anatomical relationships are very close, the loss of a constant damage at the same time, while a separate pulley nerve paralysis is rare, I have seen an example, it is reported in the next: the patient male, 32 years old, due to diplopia 38 days admission. Patient 38 days ago after drinking inadvertently fall, the first left in front of the ground, left orbital fall, after that is the phenomenon of dual-like, depending on the square for the triangle, the stairs can not see clearly, when looking to the right Visual clearer, left and right blurry and diplopia. Check: Physical examination in addition to the left lateral orbital found a 0.3 × 3cm scar, I found no positive signs. Eye examination: the right eye is positive