June 8, 2009 
Not correcting interference with vision causes approximately 121.4 billion dollars (85 billion euros) loss for the productivity of the world economy, shows a study issued by the World Health Organization (WHO)…
Total of 158 million people worldwide suffer from poor vision that is not corrected or is not corrected enough, the lack of which 8.7 million people is basically blind, according to an independent study of Australian, South African and American scientists. “If every person with poor vision received appropriate glasses, we think that it would represent an economic gain even if we buy a pair of eyeglasses worth $ 1000 for each of these people,” said one of the authors of the research Tasanee Smith, from the Faculty of Public Health John Hopkins Bloomberg in USA.
Research proves that a global decline in productivity due to poor vision or blindness amounted to 427.7 billion dollars before the correction in the function of various parameters such as the rate of activity and age.
Taken from: www.poslovni.hr