RT Journal Article SR Electronic T1 H. ROWE JEREMY JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 636-a OP 637 DO 10.1136/bjo.22.10.636-a VO 22 IS 10 YR 1938 UL http://bjo.bmj.com/content/22/10/636-a.abstract AB