Hou Peixian, Liu Longqian, Yang Guoyuan
Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
Department of Ophthalmology, West China Hospital, Sichuan University, Chengdu, Sichuan, China.
J AAPOS. 2023 Aug;27(4):231-233. doi: 10.1016/j.jaapos.2023.05.001. Epub 2023 Jun 21.
We present an atypical case of progressive fixed hypertropia in a patient with extreme myopia. Myopic strabismus fixus is typically characterized by progressive esotropia and hypotropia, which is caused by the protrusion of the posterior eyeball from the superotemporal quadrant of the extraocular muscle cone. In this case, the patient's right eye was fixed in a superomedial position, and the left eye was fixed and deviated upward. Magnetic resonance imaging revealed protrusion of a posterior scleral staphyloma inferotemporally in each eye. This case illustrates how the pattern of strabismus fixus caused by high myopia depends on the direction of the protrusion of the posterior pole and the resulting displacement of extraocular muscle paths.
我们报告了一例高度近视患者出现进行性固定性上斜视的非典型病例。近视性固定性斜视通常表现为进行性内斜视和下斜视，这是由眼球后极从眼外肌圆锥的颞上象限突出所致。在本病例中，患者右眼固定于内上方位置，左眼固定并向上偏斜。磁共振成像显示每只眼的后巩膜葡萄肿向颞下突出。该病例说明了高度近视引起的固定性斜视模式如何取决于后极突出的方向以及由此导致的眼外肌路径移位。
