Povedano-Montero Francisco Javier, Álvarez-Peregrina Cristina, Hidalgo Santa Cruz Fernando, Villa-Collar César, Sánchez Valverde José
From the Neurology Unit, Hospital 12 de Octubre Research Institute (i+12) (F.J.P.-M.), Madrid, Spain; School of Biomedical and Health Sciences, Universidad Europea de Madrid (C.Á.-P.), Madrid, Spain; Doctoral and Research School, Universidad Europea de Madrid (C.V.-C.), Madrid, Spain; Centro Boston de Optometría (F.H.S.C.), Madrid, Spain; and Lenticon (J.S.V.), Madrid, Spain.
Eye Contact Lens. 2018 Nov;44 Suppl 2:S285-S291. doi: 10.1097/ICL.0000000000000478.
To analyze the state of scientific publications in the field of scleral lenses applying a bibliometric study.
The database used in this bibliometric study was SCOPUS, the largest abstract and citation database of peer-reviewed literature: scientific journals, books, and conference proceedings. Using remote download techniques, articles published between 1962 (year of first registrations) and 2015 were selected by entering the main descriptors: "scleral contact lenses" and "scleral lenses," limiting the field for the article, keywords, and abstract, linked with the OR tab. We applied the following bibliometric indicators: Price index, doubling time and annual growth rate, Price transience index, Lotka law of scientific productivity, and Bradford zones.
The authors recovered 361 contributions (articles, reviews, letters to the editor, etc.) for 1962 to 2016. The distribution for five-year periods shows a significant increase in 2012 to 2016, with a growth of 222.22% in comparison with the previous period 2012 to 2016. The countries with the highest production are the United states with 135 contributions, United Kingdom with 46, and India with 19. The most productive institutions are Harvard Medical school, Boston Foundation for Sight, and Moorfields Eye Hospital National Health Service Foundation Trust. Classification of authors based on productivity is strongly concentrated in small producers, with a transient index of 59.03. The total number of authors is 891, representing a coauthor index of 2.47 for the 361 documents retrieved. The authors with the highest productivity are Kenneth W. Pullum, Perry Rosenthal, and Deborah S. Jacobs, with an h-index between 12 and 19 documents. The number of documents published on scleral lenses shows a significant increase in the last 5 years, and currently, they represent only 1.44% of all publications on contact lenses.
Bibliometric studies have become essential tools for evaluating scientific activity, allowing an overview of the growth, size, and distribution of scientific literature associated with a particular discipline.
通过文献计量学研究分析巩膜镜领域的科学出版物状况。
本文献计量学研究所使用的数据库是SCOPUS，它是同行评审文献（科学期刊、书籍和会议论文集）最大的摘要和引文数据库。利用远程下载技术，通过输入主要描述词“巩膜接触镜”和“巩膜镜”，并在文章、关键词和摘要字段使用“或”标签进行限制，选取1962年（首次收录年份）至2015年间发表的文章。我们应用了以下文献计量指标：普赖斯指数、倍增时间和年增长率、普赖斯瞬变指数、洛特卡科学生产力定律以及布拉德福分区。
作者检索到1962年至2016年的361篇文献（文章、综述、给编辑的信等）。五年期分布显示，2012年至2016年有显著增长，与前一时期2007年至2011年相比增长了222.22%。发文量最高的国家是美国，有135篇；英国有46篇；印度有19篇。发文量最高的机构是哈佛医学院、波士顿视力基金会和摩尔菲尔德眼科医院国民保健服务基金会信托。基于生产力的作者分类高度集中在小产量作者，瞬变指数为59.03。作者总数为891人，所检索到的361篇文献的合著指数为2.47。生产力最高的作者是肯尼斯·W·普拉姆、佩里·罗森塔尔和黛博拉·S·雅各布斯，h指数在12至19篇文献之间。关于巩膜镜的发文量在过去5年显著增加，目前仅占隐形眼镜所有出版物的1.44%。
文献计量学研究已成为评估科学活动的重要工具，能让我们全面了解与特定学科相关的科学文献的增长、规模和分布情况。
