Funding for this research was provided by:
Heed Ophthalmic Foundation (n/a)
Summer Biomedical Research Program, University of Michigan (n/a, n/a)
National Eye Institute (K23EY027848)
Received: 29 August 2017
Accepted: 25 January 2018
First Online: 30 January 2018
: Approval for this study was granted by the Aravind Eye Care System Institutional Review Board. Informed consent was obtained from all participants. The study adhered to all tenets of the Declaration of Helsinki.
: Not applicable.
: The authors declare that they have no competing interests.
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