Photoreceptor degeneration in conditions such as age-related macular degeneration, retinitis pigmentosa, and Stargardt disease has long been considered irreversible. However, advances in retinal bioengineering are redefining what is possible in vision restoration. The PRIMA wireless subretinal prosthesis is a new generation of photovoltaic retinal implant designed to restore visual perception by directly stimulating surviving retinal cells.
Unlike earlier retinal prostheses requiring wired connections, PRIMA uses near-infrared light projected from augmented glasses to activate a microchip implanted beneath the retina, enabling wireless signal transmission. Early clinical trials demonstrate promising functional visual outcomes in patients with geographic atrophy.
This e-poster explores the science behind PRIMA, emerging clinical results, limitations, and the evolving role of optometrists in identifying candidates, counselling patients, and supporting rehabilitation. As retinal prosthetic technology advances, optometry will play an essential role in bridging innovation and patient care.