RT Journal Article SR Electronic T1 CORRESPONDENCE JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 368 OP 369 DO 10.1136/bjo.28.7.368 VO 28 IS 7 A1 N. Pines YR 1944 UL http://bjo.bmj.com/content/28/7/368.abstract AB