Unverified80% confidenceDecision RuleTime unknown
老年人或视力障碍人群随身急救卡应优先大字号高对比度(黑底白字或白底黑字),并避免用彩色底纹背景,救援现场光线不佳时会大幅降低可读性
1
Sources
80%
Confidence
Long-term
Relevance
-
First Seen
Sources
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Unverified彩色范围指示功能(高/低/正常用颜色区分)对老年人或视力不佳者读数友好,减少误读风险84% similarUnverified高对比色块(如白底黑字、黄底黑字)对老年白内障或视力退化用户的辨认帮助显著,是该品类核心功能点79% similarUnverified视力不佳的老年人应选大字号凸起标识+对比色分格(如早晨黄/夜晚深蓝)的款式,纯印刷小字标签实际使用中难以辨认78% similarUnverified七种颜色区分每日+时段压印文字的设计对视力正常者辨识度高,但对视力较差的老人来说压印文字可能看不清,需依赖颜色区分77% similarUnverified比色卡判读依赖人眼辨色,在光线不佳或使用者色觉辨别力较弱时容易误判,浓度处于相邻色阶之间时尤为模糊75% similar
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