RT Journal Article SR Electronic T1 DR. JAMES KERR JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 592 OP 593 DO 10.1136/bjo.25.12.592 VO 25 IS 12 YR 1941 UL http://bjo.bmj.com/content/25/12/592.abstract AB