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KMID : 1189420220350030048
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Journal of Korean Oriental Medical Ophthalmology & Otolaryngology & Dermatology
2022 Volume.35 No. 3 p.48 ~ p.65
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Comparison of the Effectiveness of Herbal Medicine Eye Drops on Conjunctivitis : A Systematic Literature Review and Meta-Analysis
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Lim Hui-Yeong
Kim Jee-Hee
Ko Woo-Shin
Yoon Hwa-Jung
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Abstract
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Objectives : This study was conducted to find out the effectiveness and safety of herbal medicine eye drops on conjunctivitis.
Methods : We searched randomized controlled trials on conjunctivitis through 10 DBs from the start to April 27, 2022. Study collection and data extraction, and evaluation of risk of bias were conducted by two independent researchers. The evaluation of the risk of bias in included RCTs was carried out by using Cochrane risk-of-bias tool. And the data synthesis was conducted by using Review Manager(RevMan, ver.5.4).
Results : Total of 106 studies are researched and 7 studies of them are finally included. 1. The herbal medicine eye drops are more effective on than the western medicine eye drops, but the heterogeneity was very high. So we conducted sensitivity analysis and compared to the herbal medicine eye drops and the western medicine eye drops, the total effective rate was higher in the herbal medicine eye drops and the heterogeneity was somewhat reduced. 2. In the subgroup analysis, Fufang Xiongdan eye drops and Houttuynia cordata Thunb eye drops are more effective than the western medicine. It may represent substantial heterogeneity. 3. In the subgroup analysis, the herbal medicine eye drops are more effective than antibiotic and antiviral eye drops on acute bacterial conjunctivitis, but showed high heterogeneity. On the other hand, the herbal medicine eye drops are more effective than antibiotic and antiviral eyed drops on acute viral conjuctivitis and showed low heterogeneity. 4. In the subgroup analysis, we compared the effectiveness of herbal and western medicine eye drops according to total effectiveness rate evaluation methods. When comparing the studies calculating the total effective rate by the sum of 'Cured', 'Significantly Impaired', and 'Improved', the effective rate of the herbal medicine eye drops was higher than that of the western medicine eye drops, and the heterogeneity was very low. 5. In most studies, side effects of herbal medicine eye drops were absent or mild.
Conclusions : This study shows that herbal medicine eye drops may be more effective than western medicine eye drops and have safety. But further researches are needed to resolve the heterogeneity of this study.
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KEYWORD
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Conjunctivitis, Herbal eye drops, Meta-analysis
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