目的:探讨白内障(cataract)研究文献的分布规律和发展趋势,为白内障相关研究课题提供依据。方法:利用PubMed数据库,采用文献计量学的方法,对1813/2010年所收录的白内障相关文献的年代分布及趋势、期刊分布、语种、类型、副主题词、研究对象特征、全文及获取情况等进行统计分析。结果:1813/2010年底累计收录白内障研究文献45868篇。根据PubMed数据库文献类型,分为Review(n=2957),Randomized Controlled Trial(n=1890),PracticeGuideline(n=22),Meta-Analysis(n=62),Letter(n=2142),Editorial(n=505),Clinical Trial(n=2897),Others(n=35767);MEDLINE(n=43838)和Others(n=2030);Nursing journals(n=457),Core clinical journals(n=4093),Others(n=41318);Man(n=18527),Woman(n=17837),Others(n=9504);Humans(n=36577),Animals(n=6015),Others(n=3290);Infant(n=3144),Child(n=5386),Adolescent(n=4392),Adult(n=10485),Aged(n=18649),80and over(n=5993);Links to full text(n=23616),Links to free full text(n=6575),Abstracts(n=28682)。PubMed收录文献量自1946年逐渐增多,1961年后明显增多,增长趋势近似直线(Y=598.71X-689.92,R2=0.9746)。白内障研究文献以英语为主(34655,75.6%),中文发表的文献量排在第7位(732,1.59%)。PubMed中22种眼科学相关期刊(SCI收录期刊)收录文献10299篇(23%)。结论:研究表明,白内障相关研究起始于19世纪初,20世纪60年代开始受到人们的广泛关注,其后的文献量增长近似直线则是一个佐证。目前白内障研究仍是人们关注的一个热点。

AIM:To explore the distribution and growth of research articles on cataract,providing bibliometric information for cataract researchers.METHODS:Research articles on cataract published in PubMed from 1813 to 2010 were analyzed by bibliometric method.Distribution of No.of articles by time,characteristics of journals,language,type of article,vice mesh,characteristics of subjects,full articles and accessibility were statistically analyzed.RESULTS:During 1813-2010,there were 45868 cataract research literatures in the PubMed database.According to PubMed database literature type,they were categorized as follow:Review(n=2957),Randomized Controlled Trial(n=1890),Practice Guideline(n=22),Meta-Analysis(n=62),Letter(n=2142),Editorial(n=505),Clinical Trial(n=2897),Others(n=35767);MEDLINE(n=43838) and Others(n=2030);Nursing journals(n=457),Core clinical journals(n=4093),Others(n=41318);Man(n=18527),Woman(n=17837),Others(n=9504);Humans(n=36577),Animals(n=6015),Others(n=3290);Infant(n=3144),Child(n=5386),Adolescent(n=4392),Adult(n=10485),Aged(n=18649),80 and over(n=5993);Links to full text(n=23616),Links to free full text(n=6575),Abstracts(n=28682).From 1946 to 2010,the number of literatures by year approximated straight line(Y =598.71X-689.92,R2=0.9746).Chinese cataract literatures in PubMed appeared in 1946,and increased obviously since 1961.The cataract literatures is primarily in English(34655,75.6%),Chinese publication literatures arranged at 7th(732,1.59%).10299 literatures(23%) were retrieved in 22 journals on ophthalmology(SCI-indexed).CONCLUSION:Our results showed that cataract research was conducted at early time,but it is not a hot topic until 1960s of last century.Cataract research is still a focus by now,which is evidenced by the linear growth of the number of articles.

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