Figure 1. .

The Argus II system. An illustration showing the surgically implanted stimulating microelectrode array, and inductive coil telemetry link of the Argus II system (left). The external portions of the system consist of a VPU (middle), and a miniature camera mounted on a pair of glasses (right). The glasses contain the half of the inductive link transmitting both power and data to the intraocular portion of the implant. (Reproduced from Ahuja AK, Dorn JD, Caspi A, et al. Blind subjects implanted with the Argus II retinal prosthesis are able to improve performance in a spatial-motor task. Br. J Ophthalmol. 2011;95:539-43, copyright 2011, with permission from BMJ Publishing Group Ltd.).