17.“The Social and Economic Impact of Poor Vision,” Boston Consulting Group and Essilor, May 2012, https://vii-production.s3.amazonaws.com/uploads/research_article/pdf/51356f5ddd57fa3f6b000001/VisionImpactInstitute-WhitePaper-Nov12.pdf

17.“The Social and Economic Impact of Poor Vision,” Boston Consulting Group and Essilor, May 2012, https://vii-production.s3.amazonaws.com/uploads/research_article/pdf/51356f5ddd57fa3f6b000001/VisionImpactInstitute-WhitePaper-Nov12.pdf