暑期当心视力“滑坡” 这份护眼指南请收好

Core Viewpoint - The increasing screen time for children during summer vacation has led to a significant rise in myopia cases, with the overall myopia rate among children and adolescents in China reaching 52.7% [2][4]. Group 1: Myopia Statistics - The myopia rates among different educational levels are alarming, with high school students at 80.5%, middle school students at 71.1%, and elementary school students at 35.6% [2]. - The prevalence of myopia has become a serious issue across both urban and rural areas, with younger children, including those in the first and second grades, now being diagnosed with myopia [2][4]. Group 2: High Myopia Concerns - Approximately 10% to 15% of high school students suffer from high myopia (over 600 degrees), which is a significant risk factor for severe eye conditions [4][8]. - High myopia is the second leading cause of blindness in China, with 10% of all myopia cases classified as high myopia according to the National Health Commission [4][10]. Group 3: Prevention and Control Strategies - The key to preventing myopia is to protect children's "hyperopia reserve," emphasizing early intervention and monitoring [10][12]. - The Ministry of Education and other departments have set a goal to significantly reduce the incidence of new myopia cases among children and adolescents by 2030 [10][18]. Group 4: Recommendations for Eye Health - Parents are advised to limit screen time for children aged 0 to 6 to no more than one hour per day to preserve their hyperopia reserve [13]. - The "20-20-20" rule is recommended, where children should look at something 20 feet away for 20 seconds after every 20 minutes of close-up work to relax their eyes [15]. Group 5: Importance of Outdoor Activities - Engaging in outdoor activities for 2 to 3 hours daily can help delay the onset and progression of myopia by promoting dopamine secretion in the retina [17].