PT - JOURNAL ARTICLE ED - , TI - ABSTRACTS AID - 10.1136/bjo.17.2.105 DP - 1933 Feb 01 TA - British Journal of Ophthalmology PG - 105--110 VI - 17 IP - 2 4099 - http://bjo.bmj.com/content/17/2/105.short 4100 - http://bjo.bmj.com/content/17/2/105.full SO - Br J Ophthalmol1933 Feb 01; 17