Trends and topics in eye disease research in PubMed from 2010 to 2014
Résumé
Background: The purpose of this study is to provide a report on scientific
production during the period 2010–2014 in order to identify the major topics as well
as the predominant actors (journals, countries, continents) involved in the field of
eye disease. Methods: A PubMed search was carried out to extract articles related to
eye diseases during the period 2010–2014. Data were downloaded and processed
through developed PHP scripts for further analysis. Results: A total of 62,123 articles
were retrieved. A total of 3,368 different journals were found, and 19 journals were
identified as “core journals” according to Braford’s law. English was by far the
predominant language. A total of 853,182 MeSH terms were found, representing an
average of 13.73 (SD = 4.98) MeSH terms per article. Among these 853,182 MeSH
terms, 14,689 different MeSH terms were identified. Vision Disorders, Glaucoma,
Diabetic Retinopathy, Macular Degeneration, and Cataract were the most frequent
five MeSH terms related to eye diseases. The analysis of the total number of
publications showed that Europe and Asia were the most productive continents, and
the USA and China the most productive countries. Interestingly, using the mean
Five-Year Impact Factor, the two most productive continents were North America
and Oceania. After adjustment for population, the overall ranking positions changed
in favor of smaller countries (i.e. Iceland, Switzerland, Denmark, and New Zealand),
while after adjustment for Gross Domestic Product (GDP), the overall ranking
positions changed in favor of some developing countries (Malawi, Guatemala,
Singapore). Conclusions: Due to the large number of articles included and the
numerous parameters analyzed, this study provides a wide view of scientific
productivity related to eye diseases during the period 2010–2014 and allows us to
better understand this field.
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