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Authors
Rajendran, Vinoth Kumar https://orcid.org/0000-0001-9161-5198
Mala, Radhakrishnan https://orcid.org/0009-0003-2069-9461
Vardhan, Ashok https://orcid.org/0000-0002-1622-3861
Ravilla, Thulasiraj D. https://orcid.org/0000-0002-1935-7443
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Funding
Funding for this research was provided by:
FUNDING: This study was supported by the Lions Clubs International Foundation, USA (Grant number: SF 1944/UND) and Seva Foundation, USA (no award number).
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Article History
Received: 1 December 2025
Revised: 9 March 2026
Accepted: 23 March 2026
First Online: 6 April 2026
Competing interests
: The authors declare no competing interests.
: The study was approved by the Institutional Review Board of Aravind Eye Hospital, Madurai (Reg. No. ECR/182/Inst/TN/2013 dated 20.04.2013) and adhered to the tenets of the Declaration of Helsinki. Written informed consent was obtained from all adult participants. For those <18 years, parental or guardian consent was obtained; for those unable to read, information was provided verbally and thumb impressions recorded.
