PT - JOURNAL ARTICLE ED - BMJ Publishing Group Ltd.BMA House, Tavistock Square, London, WC1H 9JR TI - ANNOTATION AID - 10.1136/bjo.28.2.97 DP - 1944 Feb 01 TA - British Journal of Ophthalmology PG - 97--98 VI - 28 IP - 2 4099 - http://bjo.bmj.com/content/28/2/97.short 4100 - http://bjo.bmj.com/content/28/2/97.full SO - Br J Ophthalmol1944 Feb 01; 28