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.2009.171173 VO 93 IS 10 A2 Dua, Harminder S A2 Singh, Arun D YR 2009 UL http://bjo.bmj.com/content/93/10/i.abstract AB