Published on in Vol 3, No 3 (2022): Jul-Sep
Preprints (earlier versions) of this paper are
available at
https://preprints.jmir.org/preprint/34263, first published
.
1 International Center for Eye Health, London School of Hygiene & Tropical Medicine, London, United Kingdom
2 Africa Eye Foundation Cameroon, Yaoundé, Cameroon
3 Research Data & Statistics Unit, The Royal Marsden NHS Foundation Trust, London, United Kingdom