Published on in Vol 10, No 10 (2021): October
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/31578, first published
.
1 Bharatpur Eye Hospital, Chitwan, Nepal
2 Indian Institute of Public Health, Hyderabad, India
3 See Authors' Contributions, -, CA, United States
*these authors contributed equally