About the Authors

Tess Bright

Roles Data curation, Investigation, Project administration, Supervision, Writing – original draft, Writing – review & editing

tess.bright@lshtm.ac.uk

Affiliations International Centre for Eye Health, Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel Street, London, United Kingdom, International Centre for Evidence in Disability, Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel Street, London, United Kingdom

Hannah Kuper

Roles Conceptualization, Funding acquisition, Methodology, Writing – review & editing

Affiliations International Centre for Eye Health, Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel Street, London, United Kingdom, International Centre for Evidence in Disability, Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel Street, London, United Kingdom

David Macleod

Roles Formal analysis, Writing – review & editing

Affiliation Department of Infectious Disease Epidemiology, Faculty of Epidemiology and Population Health, London School of Hygiene & Tropical Medicine, Keppel Street, London, United Kingdom

David Musendo

Roles Project administration, Supervision, Writing – review & editing

Affiliations International Centre for Evidence in Disability, Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel Street, London, United Kingdom, Lifetime Consultants, Kigali, Rwanda

Peter Irunga

Roles Project administration, Supervision, Writing – review & editing

Affiliation Lifetime Consultants, Kigali, Rwanda

Jennifer L. Y. Yip

Roles Conceptualization, Formal analysis, Funding acquisition, Investigation, Methodology, Supervision, Writing – original draft, Writing – review & editing

Affiliations International Centre for Eye Health, Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel Street, London, United Kingdom, International Centre for Evidence in Disability, Faculty of Infectious Disease and Tropical Diseases, London School of Hygiene & Tropical Medicine, Keppel Street, London, United Kingdom

Competing Interests

Authors D. Musendo and PI are affiliated with Lifetime Consulting who conducted the data collection in partnership with researchers from London School of Hygiene & Tropical Medicine. This partnership does not alter our adherence to PLOS ONE policies on sharing data and materials.