Abstract To explore the association between a digital lifestyle and digital eye strain among adolescents, the present study analyses that a digital lifestyle has direct, mediating and moderating effects on digital eye strain of adolescents, and explores that visual load, attention and cognitive load are identified as the associated mechanisms of digital eye strain. In terms of management, the article highlights the need to raise awareness and promote healthy behavior in respect to the use of digital devices, as well as the importance of diversifying lifestyles, ensuring family and school support, and engaging in multidisciplinary cooperation to promote visual health and digital literacy among adolescents.