RT Journal Article SR Electronic T1 At a glance JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP i OP i DO 10.1136/bjo.2009.178830 VO 94 IS 2 A1 Harminder S Dua A1 Arun D Singh YR 2010 UL http://bjo.bmj.com/content/94/2/i.abstract AB