RT Journal Article SR Electronic T1 OPHTHALMOLOGICAL SOCIETY OF THE UNITED KINGDOM JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 375 OP 377 DO 10.1136/bjo.32.6.375 VO 32 IS 6 YR 1948 UL http://bjo.bmj.com/content/32/6/375.abstract AB