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. 2021 Apr 30;11:9385. doi: 10.1038/s41598-021-88832-1

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© The Author(s) 2021

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

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Visual Field Defect (VFD) regions. The distribution of the VFD regions is shown on (a). Blue region stands for paracentral VFD, while red region is classified as temporal VFD. Rest regions fall into the category for peripheral VFD. X regions corresponds to the blind spots. (b) and (c) show examples of the temporal VFD, while (d) and (e) describe nasal peripheral VFD, and paracentral VFD, respectively.