About the Authors

Saul N. Rajak

Affiliation The London School of Hygiene and Tropical Medicine, London, United Kingdom

Esmael Habtamu

Affiliation The Carter Center, Addis Ababa, Ethiopia

Helen A. Weiss

Affiliation The London School of Hygiene and Tropical Medicine, London, United Kingdom

Amir Bedri Kello

Affiliation Light For The World, Addis Ababa, Ethiopia

Teshome Gebre

Affiliation The Carter Center, Addis Ababa, Ethiopia

Asrat Genet

Affiliation The Amhara Regional Health Bureau, Bahir Dar, Ethiopia

Robin L. Bailey

Affiliation The London School of Hygiene and Tropical Medicine, London, United Kingdom

David C. W. Mabey

Affiliation The London School of Hygiene and Tropical Medicine, London, United Kingdom

Peng T. Khaw

Affiliation NIHR Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital and UCL Institute of Ophthalmology and UCL Partners AHSC, London, United Kingdom

Clare E. Gilbert

Affiliation The London School of Hygiene and Tropical Medicine, London, United Kingdom

Paul M. Emerson

Affiliation The Carter Center, Atlanta, United States of America

Matthew J. Burton

matthew.burton@lshtm.ac.uk

Affiliations The London School of Hygiene and Tropical Medicine, London, United Kingdom, NIHR Biomedical Research Centre for Ophthalmology, Moorfields Eye Hospital and UCL Institute of Ophthalmology and UCL Partners AHSC, London, United Kingdom

Competing Interests

PTK is a member of the Scientific Advisory Boards for Alcon and Bausch & Lomb. All other authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: MJB SNR HAW RLB DCWM PTK CEG PME. Performed the experiments: SNR EH ABK TG AG MJB. Analyzed the data: SNR HAW MJB. Wrote the first draft of the manuscript: SNR HAW MJB. Contributed to the writing of the manuscript: SNR EH HAW ABK TG AG RLB DCWM PTK CEG PME MJB. ICMJE criteria for authorship read and met: SNR EH HAW ABK TG AG RLB DCWM PTK CEG PME MJB. Agree with manuscript results and conclusions: SNR EH HAW ABK TG AG RLB DCWM PTK CEG PME MJB.