Abstract
College students have similar visual work intensity and environment, resulting in idiosyncratic light environment perception. This study investigated the retinal light sensitivity characteristics of the college student group, and the relationship between retinal light sensitivity of different eccentricity ranges on visual perceptual performance in three typical behavioral modes of classrooms. The group characteristics of low mean light sensitivity (MS) and high pattern standard deviation (PSD) were obtained. 57.4% MS of them was lower than the normal threshold of the whole visual field. Moreover, the degree and irregularity of light sensitivity defect gradually increased from the center to the periphery. Light sensitivity indicators have significant effects on visual perceptual performance under typical classroom artificial light condition. Regression analysis was used to screen the “effective visual field indicators” and “optimal visual field indicators” for each visual perceptual performance. It was found that the visual perceptual performance of the desktop, blackboard, and changing-over modes relied primarily on the central, full-field, and peripheral visual fields, respectively. Further, the influence mechanism models and weight relationships between optimal indicators and visual perceptual performance were developed. Potential public visual health problems were quantified, leading to theoretical guide for classroom artificial lighting design oriented to visual perception.
Published Version
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