RT Journal Article SR Electronic T1 THE OPHTHALMOLOGICAL SOCIETY OF AUSTRALIA (British Medical Association) JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 115 OP 120 DO 10.1136/bjo.31.2.115 VO 31 IS 2 YR 1947 UL http://bjo.bmj.com/content/31/2/115.abstract AB