RT Journal Article SR Electronic T1 Optical coherence tomographical findings in a case of varix of the vortex vein ampulla JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 1169 OP 1170 DO 10.1136/bjo.2009.173237 VO 95 IS 8 A1 Ismail, R A A1 Sallam, A A1 Zambarakji, H J YR 2011 UL http://bjo.bmj.com/content/95/8/1169.abstract AB