摘要：

Abstract:

【Purpose/significance】 The information-seeking behavior of visually impaired people in public health emergencies is

unique compared with that of normal people. Therefore, effective evaluation and improvement of the information ability of visually im⁃

paired people in public health emergencies is conducive to achieving information fairness.【Method/process】 This study set up three

specific situations, namely epidemic awareness, travel and basic daily life, and constructed four kinds of situational tasks with different

complexity and urgency. Finally, 35 samples were collected, and tested using the normality test of SPSS22.0 and the Mann-Whitney U

nonparametric test module.【Result/conclusion】 In the context of public health emergencies, the tools, steps and search results in the

epidemic situation are better than other specific situations; Visually impaired people have certain perception of the complexity and ur⁃

gency of tasks in different situations; The information-seeking behavior of visually impaired people shows the characteristics of path

dependence, alternative searching and recognition difficulty.【Innovation/limitation】 This study integrates the interview conclusion

into the experimental design, enriches the situational task experiment practice, and proposes strategies such as barrier-free optimiza⁃

tion and situational assistance to improve the information ability of the visually impaired; The size of the samples in this study can be

enlarged, and future research can be improved by setting up more crucial contexts.