RT Journal Article SR Electronic T1 The economic burden of global blindness: a price too high! JF British Journal of Ophthalmology JO Br J Ophthalmol FD BMJ Publishing Group Ltd. SP 276 OP 277 DO 10.1136/bjo.80.4.276 VO 80 IS 4 A1 Smith, A F A1 Smith, J G YR 1996 UL http://bjo.bmj.com/content/80/4/276.abstract AB