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Thursday, February 14, 2013

Lenses found to 'cure colour-blindness'

 7 February 2013 

A typical colour-blindness test features
a circle of coloured dots with a number
or word inside it

Scientists say they have invented spectacle lenses that cure red-green colour blindness, which affects some women and one in every 10 men.

The Oxy-Iso lenses were designed by an American research institute to allow medics to spot bruising and veins that are difficult to see.

Tests suggest they can help to enhance reds and greens in the colour-blind.

But they could not be worn by drivers, because they reduce the ability to perceive yellows and blues. (...)

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