Objectively measured near work, outdoor exposure and myopia in children.
Objectively measured near work, outdoor exposure and myopia in children.
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DOI：
10.1136/bjophthalmol-2019-315258
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发表时间：
2020-11
期刊：
影响因子：
--
通讯作者：
Yang Z
中科院分区：
文献类型：
--
作者：
Wen L;Cao Y;Cheng Q;Li X;Pan L;Li L;Zhu H;Lan W;Yang Z
通过客观的方法重新评估近距离工作、户外暴露与儿童近视之间的关系。86名儿童（10.13±0.48岁）被要求佩戴Clouclip（一种新开发的可穿戴设备，能够测量工作距离和眼平照度）整整一周，以获得近距离工作和室外暴露的信息。平均每日佩戴时间为11.72±1.14小时。用麻痹性自折射法测定了球等效折射。近视儿童平均每天光照强度分别为>3000勒克斯（0.68±0.50小时vs 1.02±0.53小时，p=0.012）和>5000勒克斯（0.42±0.35小时vs 0.63±0.31小时，p=0.004），较非近视儿童短。此外，近视儿童平均每天在<20 cm处活动的时间比非近视儿童多（1.89±0.61 h vs 1.52±0.77 h, p=0.019）。在多变量logistic分析中，较高光照强度（>3000 lux）下的时间（OR=0.27, 95% CI: 0.10 ~ 0.72, p=0.009）；>3000 lux （OR=1.17, 95% CI: 1.09 ~ 1.86, p=0.038）和>5000 lux （OR=1.12, 95% CI: 1.03 ~ 1.77, p=0.046）工作距离<20 cm分别是独立的保护因素和危险因素。本研究基于客观数据，为近距离工作强度、光强与近视之间的关系提供了新的证据。但其因果关系和剂量效应关系有待进一步研究。
To reassess the association between near work, outdoor exposure and myopia in children through an objective approach. Eighty-six children (10.13±0.48 years) were asked to wear Clouclip, a newly developed wearable device that is able to measure working distance and eye-level illuminance, for a complete week to obtain information on near work and outdoor exposure. The mean daily Clouclip wearing time was 11.72±1.14 hour. The spherical equivalent refraction was determined by cycloplegic autorefraction. The myopic children were found to be exposed to light intensities >3000 lux (0.68±0.50 hour vs 1.02±0.53 hour, p=0.012) and >5000 lux (0.42±0.35 hour vs 0.63±0.31 hour, p=0.004) for shorter durations on average each day than the non-myopic children. Additionally, the myopic children spent more time on average each day on activities at a distance of <20 cm than non-myopic children (1.89±0.61 hour vs 1.52±0.77 hour, p=0.019). In the multivariate logistic analysis, the time spent with a higher light intensity (>3000 lux (OR=0.27, 95% CI: 0.10 to 0.72, p=0.009); >5000 lux (OR=0.11, 95% CI: 0.02 to 0.56, p=0.008)) and a working distance of <20 cm (in a circumstance of >3000 lux (OR=1.17, 95% CI: 1.09 to 1.86, p=0.038) or in that of >5000 lux (OR=1.12, 95% CI: 1.03 to 1.77, p=0.046)) were the independent protective factors and risk factors, respectively. The current study provides novel evidence, based on objective data, to support the association between the intensity of near work, light intensity and myopia. However, the causality and the dose-effect relationship need to be investigated further.
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影响因子：
3
作者：
Verkicharla PK;Ramamurthy D;Nguyen QD;Zhang X;Pu SH;Malhotra R;Ostbye T;Lamoureux EL;Saw SM
通讯作者：
Saw SM
影响因子：
13.7
作者：
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通讯作者：
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影响因子：
13.7
作者：
Wu, Pei-Chang;Tsai, Chia-Ling;Kuo, Hsi-Kung
通讯作者：
Kuo, Hsi-Kung
影响因子：
3.4
作者：
French, Amanda N.;Ashby, Regan S.;Rose, Kathryn A.
通讯作者：
Rose, Kathryn A.
影响因子：
1.8
作者：
Rah, MJ;Mitchell, GL;Zadnik, K
通讯作者：
Zadnik, K