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Bibliometric Analysis of Peer-reviewed Literature on Corneal Neurotization
Gunel Guliyeva, MD1; Asim Ali, MD2; Konstantin Feinberg, PhD3; Gregory H Borschel, MD
1The Ohio State University, Columbus, OH; 2Division of Plastic and Reconstructive Surgery, University of Toronto, Toronto, ON, Canada; 3IUPUI, Indianapolis, IN; 4Indiana University, Indianapolis, IN

Purpose:
After the first peer-reviewed publication in 2009, Corneal Neurotization caused a paradigm shift in the management of Neuropathic Keratopathy. Since then, a massive proliferation of research has been published in this field. Nerve transfers alone (so-called “direct” CN, with either ipsilateral and contralateral nerve transfers) and nerve transfers extended by nerve grafts (so-called “indirect” CN) have been described. Nonetheless, bibliometric analysis to measure research in Corneal Neurotization research is missing.
Methods:
PubMed and Google Scholar were queried to identify publications in English describing Corneal Neurotization techniques, original research, case reports, and case series. This search revealed 116 (PubMed) peer-reviewed articles published between 1961 and 2021 and 639 (Google Scholar) between 1995 and 2021. Web of Science, Scopus, and Google Scholar were used to extract the h-indexes, Journal Impact Factors, and citations.
Results:
Out of 755 studies, 37 fulfilled the inclusion criteria. These papers were published between 2009 and 2021. While the country with the highest number (15) of publications was the USA, the journal with the highest number (7) of publications was Cornea. Most of the articles (22) were published in Ophthalmology journals, while six were published in the Plastic Surgery literature.
Conclusion:
Two periods and three major centers of Corneal Neurotization research were identified. Researchers from the USA, Canada, and Italy authored the majority of the articles. Cornea, Ophthalmic Plastic & Reconstructive Surgery, and British Journal of Ophthalmology were the top three journals for publication of the CN papers. Though gender disparity on the authorship was observed, a well-known female surgeon authored the most frequently cited article describing the technique.


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