In 2001, the Dobelle Institute in New York developed an artificial eye can draw outlines of objects and therefore help the blind to distinguish their surroundings. The prosthesis consists of a pair of glasses on fixing a video camera and a detector distances. The camera records the environment and the sensor calculates the length distance that separates the individual from the obstacles. The information is sent to a small bag that is inside a computer. The computer cables are connected to the visual cortex, making up the optic nerve, brain perceives the forms of surrounding people and objects. The first tests are inconclusive because individuals achieve their independence.
José Sahel improved this technique, the institute’s director of vision of the Quinze-Vingts hospital in Paris. The computer is replaced by an electrode that connects directly into the eye. The images are taken by the camera present on the pair of glasses and send them directly to the microprocessor. The signal is sent directly to the optic nerve. No need to carry so many cables or over a computer. This discovery won him theAltran in 2007. Has still to be tested in people. (more…)
The next step is to 
