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. 2022 Nov 19;13:20417314221138188. doi: 10.1177/20417314221138188

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© The Author(s) 2022

This article is distributed under the terms of the Creative Commons Attribution-NonCommercial 4.0 License (https://creativecommons.org/licenses/by-nc/4.0/) which permits non-commercial use, reproduction and distribution of the work without further permission provided the original work is attributed as specified on the SAGE and Open Access pages (https://us.sagepub.com/en-us/nam/open-access-at-sage).

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Figure 2. — Global trends and countries/regions contributing to the research field of corneal tissue engineering. (a) The annual number of publications related to corneal tissue engineering. (b) A world map depicting distribution of corneal tissue engineering. (c) The annual number of publications in the top 10 most productive countries from 1991 to 2021. (d) The sum of corneal tissue engineering related publications in the top 10 countries/regions. (e) Model fitting curves of global trends in publications of corneal tissue engineering (Y = 3.2623 × X − 6514.9131, R² = 0.9127, where X indicates the publishing year).