A Study of Healthy Lighting for Learning Performance and Visual Fatigue in School-Aged Children with Reading and Writing Tasks

It has a high impact on children’s learning performance in reading and writing tasks, daytime attention, visual fatigue, and mood in healthy indoor lighting environments. However, there is still a lack of consistent and comprehensive results on optimal lighting environments for children’s learning. In this study, a high-fidelity children’s room lighting laboratory was set up to study the levels of differences in reaction speed, accuracy, alertness, visual fatigue symptoms, and subjective perceptions of children’s reading and writing tasks at different illuminance levels (300 lx and 1200 lx) and correlated colour temperatures (CCT) 2800 K and 5000 K. 22 healthy schoolchildren (8.47 ± 2.20 years old) took part as participants in the laboratory study. Before starting, the participants underwent eye examinations, sleep assessments, and anxiety and depression tests, respectively. Results showed that colour temperature and illuminance had differential effects on spatial temperature perception and spatial colour perception, respectively (p < 0.1). Lighting environments with high correlated colour temperature and illuminance enhance children’s alertness and learning performance during reading and writing tasks while accelerating the development of visual fatigue. Finally, the article discusses the effects of different lighting elements on children’s melatonin secretion, alertness, and psychological.