Tactile Feedback Devices for Artificial Vision Implant Carriers

Tactile Feedback Devices, developed at Caltech, display ground-truth perception in the form of a pin-pattern to the blind subject with an artificial vision implant (e.g., DOE's Artificial Retina). This approach of presenting the ground-truth perception to the blind subject takes advantage of the well-developed tactile sense of blind subjects, and together with the simultaneous electrical stimulation of the retina provides a promising way towards the optimization of visual perception of artificial vision implant carriers.

[Issued patent(s): U.S. 7,321,796 and U.S. 8,260,428]