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. 2021 Sep 21;23(9):e27414. doi: 10.2196/27414

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©Ali Q Saeed, Siti Norul Huda Sheikh Abdullah, Jemaima Che-Hamzah, Ahmad Tarmizi Abdul Ghani. Originally published in the Journal of Medical Internet Research (https://www.jmir.org), 21.09.2021.

This is an open-access article distributed under the terms of the Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work, first published in the Journal of Medical Internet Research, is properly cited. The complete bibliographic information, a link to the original publication on https://www.jmir.org/, as well as this copyright and license information must be included.

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Distribution of papers per landmark(s). BG: background; BV, blood vessel; OC: optic cup; OD: optic disc; RL: rim loss; RNFL: retinal nerve fiber layer.