PT - JOURNAL ARTICLE ED - , TI - ANSWERS AID - 10.1136/bjo.2008.138842a DP - 2009 May 01 TA - British Journal of Ophthalmology PG - 697--697 VI - 93 IP - 5 4099 - http://bjo.bmj.com/content/93/5/697.short 4100 - http://bjo.bmj.com/content/93/5/697.full SO - Br J Ophthalmol2009 May 01; 93