Development and Implantation of a Minimally Invasive Wireless Subretinal NeurostimulatorMIT boffins have devised a method of fitting a chip on the end of the optical nerve which can be used to input electronic images directly into the brain without any need for an eyeball. The technique could offer blind people a degree of vision using head-mounted camera/sensor equipment, in the style of Geordi LaForge from Star Trek: The Next Generation
Once the implant is in place, wireless transmissions are made from outside the head. These induce currents in the receiving coils of the nerve chip, meaning that it needs no battery or other power supply. The electrode array stimulates the nerves feeding the optic nerve, so generating a image in the brain.
Read more:
http://www.theregister.co.uk/2009/09/24/geordi_laforge_mit_nerve_chip/
http://ieeexplore.ieee.org/xpl/freeabs_all.jsp?isnumber=5238786&arnumber=4895304&count=24&index=17
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