Department of Ophthalmology, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
Ophthalmology. 2013 May;120(5):1080-5. doi: 10.1016/j.ophtha.2012.11.009. Epub 2013 Feb 22.
The aim of this study was to investigate the effect of outdoor activity during class recess on myopia changes among elementary school students in a suburban area of Taiwan.
Prospective, comparative, consecutive, interventional study.
Elementary school students 7 to 11 years of age recruited from 2 nearby schools located in a suburban area of southern Taiwan.
The children of one school participated in the interventions, whereas those from the other school served as the control group. The interventions consisted of performing a recess outside the classroom (ROC) program that encouraged children to go outside for outdoor activities during recess. The control school did not have any special programs during recess.
Data were obtained by means of a parent questionnaire and ocular evaluations that included axial length and cycloplegic autorefraction at the beginning and after 1 year.
Five hundred seventy-one students were recruited for this study, of whom 333 students participated in the interventional program, and 238 students were in the control school. At the beginning of the study, there were no significant differences between these 2 schools with regard to age, gender, baseline refraction, and myopia prevalence (47.75% vs. 49.16%). After 1 year, new onset of myopia was significantly lower in the ROC group than in the control group (8.41% vs. 17.65%; P<0.001). There was also significantly lower myopic shift in the ROC group compared with the control group (-0.25 diopter [D]/year vs. -0.38 D/year; P = 0.029). The multivariate analysis demonstrated that the variables of intervention of the ROC program and higher school year proved to be a protective factor against myopia shift in nonmyopic subjects (P = 0.020 and P = 0.017, respectively). For myopic subjects, school year was the only variable significantly associated with myopia progression (P = 0.006).
Outdoor activities during class recess in school have a significant effect on myopia onset and myopic shift. Such activities have a prominent effect on the control of myopia shift, especially in nonmyopic children.
FINANCIAL DISCLOSURE(S): The author(s) have no proprietary or commercial interest in any materials discussed in this article.
本研究旨在探讨台湾郊区小学生课间户外活动对近视变化的影响。
前瞻性、比较性、连续性、干预性研究。
来自台湾南部郊区附近 2 所学校的 7 至 11 岁小学生。
一所学校的学生参加干预措施，而另一所学校的学生作为对照组。干预措施包括在课间进行户外活动（ROC）计划，鼓励学生在课间到户外进行户外活动。对照组学校在课间没有任何特殊活动。
通过家长问卷和眼部评估获得数据，包括轴向长度和睫状肌麻痹自动折射，在开始和 1 年后进行。
本研究共招募了 571 名学生，其中 333 名学生参加了干预计划，238 名学生在对照组学校。在研究开始时，这两所学校在年龄、性别、基线折射和近视患病率方面没有显著差异（47.75%比 49.16%）。1 年后，ROC 组的新发近视明显低于对照组（8.41%比 17.65%；P<0.001）。ROC 组的近视进展也明显低于对照组（-0.25 屈光度/年比-0.38 D/年；P=0.029）。多变量分析表明，ROC 计划的干预变量和较高的年级被证明是未近视受试者近视进展的保护因素（P=0.020 和 P=0.017）。对于近视患者，年级是与近视进展显著相关的唯一变量（P=0.006）。
课间户外活动对近视的发生和近视的进展有显著影响。这种活动对近视进展的控制有显著影响，尤其是对非近视儿童。
作者没有任何与本文讨论的材料相关的专有或商业利益。
