Digital health · 2026
Quality and reliability of glaucoma-related online Chinese videos on Douyin and Bilibili: Cross-sectional content analysis study.
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Wang Dangdang, Pu Yanyu, Li Yunfei, Peng Yang, He Yuyan, Gao Xi, Zhu Huiyu, Wang Wenyi, Du Shaowen, Li Hong
Аннотация
BACKGROUND: Glaucoma is a leading cause of irreversible blindness, with a rising global prevalence, driving an increased public search for health information online. Online video platforms, such as Douyin and Bilibili, have become key channels for health communication. However, the quality and reliability of glaucoma-related content on these platforms remain unclear, raising concerns regarding potential misinformation.
METHODS: On 22 October 2025, the top 100 Chinese-language videos of glaucoma from Douyin and Bilibili were systematically collected. The video metadata and engagement metrics were recorded. Quality and reliability were assessed using the Global Quality Score (GQS), modified Decision-making Information Support Criteria for Evaluating the Reliability of Nonrandomized Studies (mDISCERN), JAMA (Journal of the American Medical Association) benchmark criteria, and Patient Education Materials Assessment Tool (PEMAT) for Audio Visual Content. Statistical analysis including Spearman correlation was used to examine the relationships between video variables and quality scores.
RESULTS: Douyin videos exhibited significantly higher user interaction (likes, comments, shares, and saves) than Bilibili videos. However, the Bilibili videos demonstrated significantly higher median scores for GQS and PEMAT actionability. Videos from professional sources, particularly institutions, and those focusing on disease prevention or using expert monologue/visual aids consistently showed superior quality and reliability across all the assessment tools. Spearman correlation revealed that longer video duration was positively correlated with higher GQS, mDISCERN, and PEMAT understandability scores, whereas fewer comments were negatively correlated with these scores.
CONCLUSIONS: The overall quality and reliability of glaucoma-related online videos from Douyin and Bilibili were suboptimal. Content from nonprofessional sources was problematic. These findings highlight the need for public vigilance when consuming health information on such platforms, and underscore the importance of encouraging greater involvement from healthcare professionals in creating accurate, high-quality educational content.
METHODS: On 22 October 2025, the top 100 Chinese-language videos of glaucoma from Douyin and Bilibili were systematically collected. The video metadata and engagement metrics were recorded. Quality and reliability were assessed using the Global Quality Score (GQS), modified Decision-making Information Support Criteria for Evaluating the Reliability of Nonrandomized Studies (mDISCERN), JAMA (Journal of the American Medical Association) benchmark criteria, and Patient Education Materials Assessment Tool (PEMAT) for Audio Visual Content. Statistical analysis including Spearman correlation was used to examine the relationships between video variables and quality scores.
RESULTS: Douyin videos exhibited significantly higher user interaction (likes, comments, shares, and saves) than Bilibili videos. However, the Bilibili videos demonstrated significantly higher median scores for GQS and PEMAT actionability. Videos from professional sources, particularly institutions, and those focusing on disease prevention or using expert monologue/visual aids consistently showed superior quality and reliability across all the assessment tools. Spearman correlation revealed that longer video duration was positively correlated with higher GQS, mDISCERN, and PEMAT understandability scores, whereas fewer comments were negatively correlated with these scores.
CONCLUSIONS: The overall quality and reliability of glaucoma-related online videos from Douyin and Bilibili were suboptimal. Content from nonprofessional sources was problematic. These findings highlight the need for public vigilance when consuming health information on such platforms, and underscore the importance of encouraging greater involvement from healthcare professionals in creating accurate, high-quality educational content.