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| − | Two British men who have been totally blind for many years have had part of their vision restored after surgery to fit pioneering eye implants.
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| − | They are able to perceive light and even some shapes from the devices which were fitted behind the retina.
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| − | The men are part of a clinical trial carried out at the Oxford Eye Hospital and King's College Hospital in London.
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| − | Professor Robert MacLaren and Mr Tim Jackson are leading the trial.
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| − | The two patients, Chris James and Robin Millar, lost their vision due to a condition known as retinitis pigmentosa, where the photoreceptor cells at the back of the eye gradually cease to function.
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| − | The wafer-thin, 3mm square microelectronic chip has 1,500 light-sensitive pixels which take over the function of the photoreceptor rods and cones.
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| − | The surgery involves placing it behind the retina from where a fine cable runs to a control unit under the skin behind the ear.
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Última revisión de 11:22 4 may 2012
