TY - JOUR AU - Keay Lisa AU - Friedman D. AN - 21828208 BT - BMJ (Clinical Research Ed.) ET - 2011/08/11 LA - eng N1 - Keay, LisaFriedman, David SCommentEditorialEnglandBMJ (Clinical research ed.)BMJ. 2011 Aug 9;343:d4793. doi: 10.1136/bmj.d4793. PY - 2011 SN - 1468-5833 (Electronic)0959-535X (Linking) EP - d4793 T2 - BMJ (Clinical Research Ed.) TI - Correcting refractive error in low income countries VL - 343 ER -