2024 Yes https://doi.org/10.1186/s12889-024-18958-0 Li, Fengqin Asia Observational Students Middle/Jr High (6-8) Vision Eye-related behavior Myopia COVID-19 Double reduction policy Junior middle school students Latent profile analysis Using latent profile analysis, this observational study assessed behavioral patterns among junior middle school students in China and their association with myopia during the COVID-19 pandemic.