The purpose of this study was to investigate the effects of visual fatigue and dry eye level under different reading background polarities and different text colours, and to evaluate the effect of comfortable reading mode on the improvement of visual fatigue and dry eye level
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Critical flicker fusion frequency
Timeframe: Participants underwent five randomized experimental conditions through study completion, an average of 2 months. For each condition, CFF test was administered at baseline (pre-experiment) and post-task,totaling ten completions per participant.