近几十年来，全球近视患病率不断上升，已成为全世界主要的公共卫生问题之一。众多研究表明户外活动能有效控制近视的发生和发展。本文综述了户外活动对近视防控作用的研究进展及其作用机制，以期为近视防控提供新的思路。

     In recent decades, the prevalence of myopia has been increasing globally, becoming one of the major public health issues worldwide. Numerous studies indicate that outdoor activities can effectively control the onset and progression of myopia. This article reviews the research progress on prevention and control effect and mechanism of outdoor activities on myopia, hoping to provide new insights for myopia prevention and control.