RT Journal Article SR Electronic T1 ABSTRACTS JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 328 OP 333 DO 10.1136/bjo.3.7.328 VO 3 IS 7 YR 1919 UL http://bjo.bmj.com/content/3/7/328.abstract AB