Study of New Retinal Stimulation Methods Using Argus II Prosthesis Testing Visual and Shape Perception Improvements

What this Trial Is About

Researchers are evaluating new methods of retinal stimulation and training to improve visual ability in participants with retinal prostheses, specifically those with Retinitis Pigmentosa. The study aims to find ways to make visual perception through the retinal prosthesis easier using auditory-visual training and enhanced shape perception techniques. The trial will test alternative stimulus patterns delivered by new visual processing units VPUs applying asymmetric waveforms and bipolar stimulation pulses. These experimental patterns will be tested in the clinic and compared to baseline settings, with participants returning home using the baseline settings. The interventions focus on improving the perception of shapes and stimulus thresholds. Participants will undergo testing sessions in the clinic to measure changes in stimulus thresholds and shape perception over an 8-hour period. Researchers will assess the percent change from baseline to evaluate the effectiveness of the new stimulus patterns. Participants must be implanted with an Argus II Retinal Prosthesis and able to comply with all study procedures during their involvement.

Experimental and Clinical Studies of Retinal Stimulation