Changing patterns of strabismus: a decade of experience in Hong Kong
Changing patterns of strabismus: a decade of experience in Hong Kong
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DOI：
10.1136/bjo.86.8.854
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发表时间：
2002-08-01
影响因子：
4.1
通讯作者：
Lam, DSC
中科院分区：
文献类型：
--
作者：
Yu, CBO;Fan, DSP;Lam, DSC
背景/目的：斜视类型的种族差异是已知的，但很少有关于非白人人群的大规模研究。此外，在局部环境中这种模式的纵向变化在过去没有很好的记录。本研究旨在支持外斜视在中国患者中更常见的临床印象，以及外斜视患者的比例在过去十年中一直在增加。方法：对香港眼科医院斜视门诊诊断为原发性水平斜视的2704例连续患者进行回顾性分析，以确定内斜视和外斜视的相对患病率，记录的特征包括患者的人口统计学资料，斜视的类型，以及斜视的性质是否是恒定或间歇性的。结果：742例（27.4%）患者被发现有内斜视，548例（20.3%）有恒定外斜视，1213例（44.9%）有间歇性外斜视，201例（7.4%）有微小斜视。在过去的十年中，外斜视患者与内斜视患者的比例稳步增加（p < 0.0001）。这主要是占间歇性外斜视的患者人数增加，和相应的内斜视的患者人数减少。结论：外斜视被证明是更普遍的内斜视在香港中国人群。此外，间歇性外斜视患者的比例似乎在增加，与外斜视患者相反。这一趋势的确切性质和可能的病因因素将需要进一步研究。
Background/aims: Racial variation in the pattern of strabismus is known, but few large scale studies on non-white populations are available. Furthermore, longitudinal change in this pattern within a local setting has not been ell documented in the past. This study aims to support the clinical impression that exotropia is more common in Chinese patients, and that the proportion of patients with exotropia has been increasing in the past decade.Methods: A total of 2704 consecutive patients with the diagnosis of primary horizontal strabismus, seen in the strabismus clinic of the Hong Kong Eye Hospital, were retrospectively analysed to determine the relative prevalence of esotropia and exotropia, Characteristics recorded include patient demographics, type of strabismus, and whether the nature of the squint was constant or intermittent.Results: 742 (27.4%) patients were found to have esotropia, 548 (20.3%) had constant exotropia, 1213 (44.9%) had intermittent exotropia, and 201 (7.4%) had microtropia. The proportion of exotropic to esotropic patients was shown to increase steadily throughout the past decade (p < 0.0001). This was mainly accounted for an increase in the number of patients with intermittent exotropic, and a corresponding decrease in the number of patients with esotropia.Conclusion: Exotropia was shown to be more prevalent an esotropia in a Hong Kong Chinese population. Furthermore, the proportion of patients with intermittent exotropia appears to be increasing, in contrast with exotropic patients. The exact nature of this trend, and possible aetiological factors will require further study.