目的 调查合肥市学龄前儿童散光现状,并分析其影响因素.方法 选择合肥市10家托幼机构3～6岁学龄前儿童3 600例,应用伟伦视力筛选仪进行双眼屈光度的检查,并通过调查表调查其发病的影响因素.结果 完成视力筛查和调查问卷的学龄前儿童共计3 428例,应答率95.2％,散光共计219例(占6.4％).各年龄段(χ2 =3.819,P＞0.05)和不同性别(χ2 =0.255, P＞0.05)散光发生率差异无统计学意义.logistic回归分析表明,影响学龄前儿童散光的因素包括出生时体质量、户外活动和近距离用眼时间.结论 散光是合肥地区学龄前儿童视力异常的重要表现之一,出生时体质量、户外活动和近距离用眼时间是影响其发病的重要因素.%Objectives To explore the incidence of astigmatism and main influencing factors of preschool children in Hefei city. Methods A total of 3600 preschool children aged 3 to 6 years from 10 kindergartens in Hefei were enrolled in this study. Eye diopter was checked by vision screening instrument. The questionnaires of astigmatism influencing factors were completed at the same time. Results Al-together 3428 (95. 2％) of the preschool children received the vision screening and filled out questionnaires. The astigmatism occurred in 219(27. 1％) children. There was no significant difference in morbidity rate of astigmatism between the age (χ2 =3. 819,P＞0. 05) and sex (χ2 =0. 255,P＞0. 05). The Logistic regression analysis indicated that the main influencing factors of vision disorders were birth weight, the time of outdoor activity and near work activity. Conclusion The astigmatism is one of the pivotal reasons for vision disorders of preschool children in Hefei city, and the main influencing factors are birth weight, the time of outdoor activity and near work activity.
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