Funding for this research was provided by:
Queen Elizabeth Diamond Jubilee Trust through the Commonwealth Eye Health Consortium (ITCRZC6812)
Text and Data Mining valid from 2019-05-17
Received: 17 February 2019
Accepted: 1 May 2019
First Online: 17 May 2019
Ethics approval and consent to participate
: Ethical approval was obtained from the Ethics Review Committees of the London School of Hygiene & Tropical Medicine, UK, and of the National Eye Hospital, Colombo, Sri Lanka. Written informed consent was obtained from all the participants after explaining the objectives of the study, including the use of audio recording and usage of data and anonymous quotes in the publications.
: Not applicable.
: The authors declare that they have no competing interests.
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