RT Journal Article SR Electronic T1 Authors' response JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1174 OP 1174 DO 10.1136/bjo.2011.205203 VO 95 IS 8 A1 Amardeep Singh A1 Torben Lykke Sørensen YR 2011 UL http://bjo.bmj.com/content/95/8/1174.1.abstract AB