Abstract
WHAT IS ALREADY KNOWN ABOUT THIS TOPIC? Myopia has emerged as a significant public health concern in China, particularly among children and adolescents. While evidence demonstrates the effectiveness of outdoor activity in preventing myopia, comprehensive economic analyses evaluating its role in reducing myopia-related diseases remain limited. WHAT IS ADDED BY THIS REPORT? This study evaluates the cost-effectiveness of increasing outdoor activity across different educational stages in preventing myopia-related diseases among Chinese children and adolescents. The findings indicate that interventions implemented at all educational stages, with the exception of high school, are cost-effective strategies for reducing the myopia burden. WHAT ARE THE IMPLICATIONS FOR PUBLIC HEALTH PRACTICE? This research demonstrates the cost-effectiveness of increasing outdoor activity as a myopia prevention strategy among children and adolescents in China. It provides valuable insights for policymakers and healthcare planners to optimize resource allocation and develop targeted public health initiatives aimed at reducing the burden of myopia.