Brien A. Holden|Nina Tahhan|Monica Jong|David A. Wilson|Tim Fricke|Rupert Bourne|Serge Resnikoff
Towards better estimates of uncorrected presbyopia
Brien Holden Vision Institute|Brien Holden Vision Institute|UNSW Sydney|Brien Holden Vision Institute|UNSW Sydney|Brien Holden Vision Institute|UNSW Sydney|Brien Holden Vision Institute|UNSW Sydney|Anglia Ruskin University|Brien Holden Vision Institute|UNSW Sydney
normal vision depends upon ability ocular lens change shape ensuring light focused sensitive part retina anyone living beyond middle age inevitably affected presbyopia inability focus near objects due loss flexibility ocular lens estimated half one billion people affected globally cannot afford spectacles needed correct eyesight people uncorrected visual impairment live low middleincome countries12