Metz H S, Sterns G
J Pediatr Ophthalmol Strabismus. 1985 May-Jun;22(3):97-9. doi: 10.3928/0191-3913-19850501-06.
A 20-year old female was found to have an alternating pattern of right esotropia and right exotropia following surgery for a clivus chordoma three years previously. When esotropic, abduction was markedly limited while adduction was full in the right eye. When exotropic, mild limitation of both abduction and adduction was noted. Horizontal saccadic velocity studies were consistent with the diagnosis of sixth nerve palsy when esotropia was manifest and a Duane's syndrome, type II when exotropia was present. The etiology of these unusual findings is not well understood.
一名20岁女性在三年前因斜坡脊索瘤接受手术后出现右眼内斜视和外斜视交替的模式。内斜视时，右眼外展明显受限，而内收正常。外斜视时，外展和内收均有轻度受限。水平扫视速度研究表明，内斜视时符合第六神经麻痹的诊断，外斜视时符合杜安综合征Ⅱ型。这些异常表现的病因尚不清楚。
