title: Reply.
authors.affiliation: Aravind Eye Hospital, Madurai, Tamilnadu, India. Electronic address: haripriya@aravind.org.
authors.forename: Aravind
authors.initials: A
authors.lastname: Haripriya
authors.affiliation: Altos Eye Physicians, Los Altos, California.
authors.forename: David F
authors.initials: DF
authors.lastname: Chang
authors.affiliation: John Hopkins University, Baltimore, Maryland.
authors.forename: Sathvik
authors.initials: S
authors.lastname: Namburar
authors.affiliation: Aravind Eye Hospital, Madurai, Tamilnadu, India.
authors.forename: Smita
authors.initials: S
authors.lastname: Anand
authors.affiliation: Aravind Eye Hospital, Madurai, Tamilnadu, India.
authors.forename: Ravilla D
authors.initials: RD
authors.lastname: Ravindran