Pixium Vision said today that its Prima miniature wireless photovoltaic sub-retinal implant has been activated in the first five patients.
The patients all have severe vision loss from atrophic dry age-related macular degeneration. They are enrolled in a three-year clinical study in France to evaluate the safety and function of the Prima chip in eliciting visual light perception, the company said in a statement. All five reported seeing useful light patterns in areas where they had had no remaining light perception. The current study patients will be taught how to interpret their new artificial central macular perception.