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首页> 外文期刊>American Orthoptic Journal >Intermittent Exotropia: Facts, Opinions, and Unknowns
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Intermittent Exotropia: Facts, Opinions, and Unknowns

机译：间歇性外斜视：事实，观点和未知数

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Introduction: Intermittent exotropia (IXT) can be a controversial topic, often eliciting lively discussion. This lecture will discuss its definition, incidence, age of onset, presentation, natural variation, criteria for deterioration, goals of treatment, effectiveness of surgical treatment, types of surgical treatment, and unwanted effects of surgical treatment.Method: Results from the scientific literature, opinions of respected colleagues, the opinion of the author, and the results of live polling of the audience during the John Pratt-Johnson lecture are presented.Results: IXT is defined as an exotropia that is present intermittently predominantly for distance. Its incidence is about 1% and it usually has an onset before age 5. Patients often present because of concern regarding the appearance of the eye misalignment. There is natural variation in the control of IXT, the angle of IXT, and the amount of stereopsis. Criteria that denote deterioration are increasing frequency of IXT, progressively and consistently increasing angle of IXT, loss of binocular vision, and increasing concern regarding the patient's appearance and its effect on social interaction. Goals of treatment are to retain equal or nearly equal vision, to obtain acceptable cosmesis, and to retain binocular vision. The long-term success of surgical treatment is not well proven. Persistent postoperative overcorrection is an unwanted effect of surgical treatment.Conclusion: The inherent biologic variation that occurs when measuring the components of IXT makes it difficult to be dogmatic about IXT, particularly when trying to decide when deterioration is occurring.
机译：简介：间歇性外斜视（IXT）可能是一个有争议的话题，经常引起人们热烈的讨论。本讲座将讨论其定义，发生率，发病年龄，表现，自然变异，恶化标准，治疗目标，手术治疗的有效性，手术治疗的类型以及手术治疗的不良影响。方法：来自科学文献的结果提出了尊敬的同事的意见，作者的意见以及在约翰·普拉特-约翰逊（John Pratt-Johnson）演讲期间对现场观众进行的现场投票的结果。它的发生率约为1％，通常在5岁之前发作。患者经常出现是因为担心眼睛错位的出现。 IXT的控制，IXT的角度和立体视的数量会自然变化。表示恶化的标准是IXT频率增加，IXT角度不断且持续增加，双眼视力丧失以及对患者的外表及其对社交互动的影响的关注增加。治疗的目标是保持相等或几乎相等的视力，获得可接受的美容效果，并保持双眼视力。手术治疗的长期成功尚未得到充分证明。持续的术后过度矫正是手术治疗的不良影响。结论：测量IXT的成分时固有的生物学差异使得很难对IXT保持教条，尤其是在试图确定何时发生恶化时。

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