Brain implant restores basic sight for blind person

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Researchers implanted an intracortical microelectrode array consisting of 96 electrodes in the visual cortex of a person with complete blindness. Images from a camera were processed and transferred directly to the visual cortex. The blind person was able to identify some letters and recognize object boundaries. Over time, a learning process helped the person to recognize complex patterns.
Credit:
Visual percepts evoked with an Intracortical 96-channel microelectrode array inserted in human occipital cortex
Eduardo Fernández, Arantxa Alfaro, Cristina Soto-Sánchez, Pablo González-López, Antonio M. Lozano Ortega, Sebastian Peña, María Dolores Grima, Alfonso Rodil, Bernardeta Gómez, Xing Chen, Pieter R. Roelfsema, John D. Rolston, Tyler S. Davis, and Richard A. Normann
The Journal of Clinical Investigation, DOI: 10.1172/JCI151331