Classes taken to popularize knowledge of protecting eyes in E China's Zhejiang

Medical staff members introduce ways of protecting eyes at a class in Donglin primary school in Donglin Township of Huzhou City, east China's Zhejiang Province, Sept. 4, 2018. Classes are being taken to popularize the knowledge of protecting eyes as China aims at curbing the rise in nearsightedness-or myopia-among children and teenagers. (Xinhua/Xu Yu)