Funding for this research was provided by:
Queen Elizabeth Diamond Jubilee Trust, coordinated through the Commonwealth Eye Health Consortium - United Kingdom. (ITRCRZC6812)
Text and Data Mining valid from 2019-04-08
Received: 22 November 2018
Accepted: 26 March 2019
First Online: 8 April 2019
Ethics approval and consent to participate
: The ethics approval was obtained from the London School of Hygiene and Tropical Medicine - United Kingdom and from the National Eye Hospital of Sri Lanka. Written informed consent was obtained from all the participants recruited in this study.
: Not applicable.
: The authors declare that they have no competing interests.
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