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当一病人有非共同性斜视和眼球转动在一个或更多方向受限制时,往往会有一眼外肌力弱。这可能是因眼外肌紧张、结膜和球筋膜缩短、瘢痕组织以及眶外伤有组织嵌顿所引起眼球运动的限制。这些机械性限制可能比减弱的眼球转动单纯麻痹性原因更为常见。成功的处置有赖于术前对斜视和运动受限的机理的正确了解。最重要的是认识到斜视中的限制成分,为的是处置恰当。一、限制的类型1.束缚(leash):眼球达某一定位置前,眼球转动可能不受限。在到达那一点之前,眼球运动自如,达限制点时,眼球受到眼球对侧限制的限制,病人自主努力或检查者施加外力均不能
When a patient has non-common strabismus and eyeball rotation is limited in one or more directions, there is often a weakening of the external muscles. This may be due to extraocular muscle tension, conjunctival and fascia shortening, scar tissue and orbital trauma organized incarceration caused by eye movement restrictions. These mechanical limitations may be more common than weakened rotational paralysis alone. Successful treatment depends on a correct understanding of the preoperative strabismus and motor-limited mechanisms. The most important thing is to recognize the limiting component of strabismus in order to be properly disposed of. First, the type of restriction 1. Limitation (leash): Eye up to a certain location, the eye rotation may not be limited. Before reaching that point, the eye movement freely, up to the limit point, the eye by the contralateral eye restrictions, the patient’s own efforts or the examiner can not exert external force