Abstract：
Although studies have shown that light affects sleep in polar populations, the sample size of most studies is small. This meta-analysis provides the first systematic review of the effects of summer glare, spring and fall moderate daylight, and artificial lighting on general sleep problems (sleep duration, efficiency, and delay). This analysis included 18 studies involving 986 participants. We calculated the random effect size via an evidence-based meta-analysis that analysed the effect of bright/auxiliary light on sleep and the effect of three different types of light on sleep compared with conventional light. There was no significant correlation between specific light types and sleep duration. Intense summer light has a negative effect on sleep time and efficiency. Moderate, natural light in spring and autumn effectively delayed sleep but could not improve sleep efficiency. For artificial fill light, neither blue light nor enhanced white light has been found to have a significant effect. In summary, summer light has a detrimental effect on sleep in polar populations, and moderate natural light may be superior to conventional light. However, specific strategies to improve sleep and artificial lighting in polar populations must be explored further.
摘要：
尽管研究表明光线会影响极地人群的睡眠，大多数研究的样本量都很小。这项荟萃分析首次对夏季眩光的影响进行了系统评价，春天和秋天温和的日光，和人工照明对一般睡眠问题(睡眠持续时间，效率,和延迟）。这项分析包括18项研究，涉及986名参与者。我们通过基于证据的荟萃分析计算了随机效应的大小，该分析分析了明亮/辅助光对睡眠的影响以及与传统光相比三种不同类型的光对睡眠的影响。特定光照类型与睡眠持续时间之间没有显着相关性。强烈的夏季光线对睡眠时间和效率有负面影响。中等,自然光在春季和秋季有效延迟睡眠，但不能提高睡眠效率。对于人工补光，既没有发现蓝光也没有发现增强的白光具有显著的效果。总之,夏季光线对极地人群的睡眠有不利影响，和适度的自然光可能优于传统的光。然而,必须进一步探索改善极地人群睡眠和人工照明的具体策略。
