Assessment of Daily Light and Ultraviolet Exposure in Young Adults
Assessment of Daily Light and Ultraviolet Exposure in Young Adults
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DOI：
10.1097/opx.0b013e31827cda5b
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发表时间：
2013-02-01
影响因子：
1.4
通讯作者：
Wood, Joanne M.
中科院分区：
文献类型：
--
作者：
Schmid, Katrina L.;Leyden, Karla;Wood, Joanne M.
目的。有一些基于问卷调查数据的有限报告表明，户外活动可以降低儿童近视的风险，并可能抵消与长时间近距离工作相关的近视风险。本研究的目的是探讨近视眼和近视大学生的近视眼、室内照明、日常阳光和紫外线暴露之间的关系，因为大学生有大量的近视眼，并且作为一个群体，近视的患病率很高。参与者是35名学生，年龄在17岁到25岁之间，他们被分为近视（n = 13）、稳定（n = 12）和进行性近视（n = 10）。在三天的清醒时间里，参与者佩戴光传感器数据记录仪（HOBO）和聚砜紫外线剂量计；这些装置分别测量每日照度和累积紫外线照射。参与者还完成了一份每日活动日志。在平均每日照度（p = 0.732）、每天在阳光下度过的小时数（p = 0.266）、室外阴影（p = 0.726）、室内明亮/室外昏暗的光线（p = 0.574）或室内昏暗的照度（p = 0.484）方面，组间无显著差异。各组的每日紫外线暴露量有显著差异（p = 0.003），稳定型近视患者的紫外线暴露量最大（与近视患者相比，p = 0.002；与进展型近视患者相比，p = 0.004）。目前的文献表明，儿童的近视保护和户外活动之间存在联系。我们的数据为年轻人的这种关系提供了一些证据，并强调需要进行更大规模的研究来进一步调查这种纵向关系。（光学视觉科学，2013;90:148-155）
Purpose. There are some limited reports based on questionnaire data that suggest that outdoor activity decreases the risk of myopia in children and may offset the myopia risk associated with prolonged nearwork. The aim of this study was to explore the relationship between nearwork, indoor illumination, daily sunlight, and UV exposure in emmetropic and myopic university students-given that university students perform significant amounts of nearwork and, as a group, have a high prevalence of myopia.Methods. Participants were 35 students, aged 17 to 25 years, who were classified as being emmetropic (n = 13) or having stable (n = 12) or progressing myopia (n = 10). During waking hours on three separate days, participants wore a light sensor data logger (HOBO) and a polysulfone UV dosimeter; these devices measured daily illuminance and accumulative UV exposure, respectively. Participants also completed a daily activity log.Results. No significant between-group differences were observed for average daily illuminance (p = 0.732), number of hours per day spent in sunlight (p = 0.266), outdoor shade (p = 0.726), bright indoor/dim outdoor light (p = 0.574), or dim room illumination (p = 0.484). Daily UV exposure was significantly different across the groups (p = 0.003), with stable myopes experiencing the greatest UV exposure (vs emmetropes, p = 0.002; versus progressing myopes, p = 0.004).Conclusions. The current literature suggests that there is a link between myopia protection and spending time outdoors in children. Our data provide some evidence of this relationship in young adults and highlight the need for larger studies to further investigate this relationship longitudinally. (Optom Vis Sci 2013;90:148-155)