With the support by the National Natural Science Foundation of China and the State Key Laboratory in Ophthalmology of China,the research team led by Prof.He MingGuang (何明光) at the State Key Laboratory of Ophthalmology,Zhongshan Ophthalmic Center,Sun Yat-sen University,reported recently on the efficacy of increasing time spent outdoors at school in preventing incident myopia among school-aged children in China.The paper was published in JAMA (2015,314:1142-1148).