Sivakumar, Priya
Vedachalam, Rajesh
Kannusamy, Veena
Odayappan, Annamalai http://orcid.org/0000-0003-2210-898X
Venkatesh, Rengaraj
Dhoble, Pankaja
Moutappa, Fredrick
Narayana, Shivananda
Article History
Received: 4 October 2018
Revised: 16 July 2019
Accepted: 26 July 2019
First Online: 6 August 2019
Compliance with ethical standards
:
: The authors declare that they have no conflict of interest.
: Institutional research and ethical committee approval was obtained from Aravind Eye care, Madurai, Tamil Nadu, India.
: Written informed consent has been obtained from all participants of this study.