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© The Financial Times Ltd 2012 FT and 'Financial Times' are trademarks of The Financial Times Ltd.
Though most visual impairment can be avoided or cured, 90 per cent of those affected live in developing countries where medical care can be infrequent and inaccessible.
Sightsavers, the charity that the Financial Times is supporting through this year’s seasonal appeal, is working to eradicate avoidable blindness and provide equal opportunities to disabled people in developing countries.
Use the vision simulator below to see the world through their eyes.
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