Medicine and Health

Photovoltaic retinal prosthesis restores high-resolution responses to single-pixel stimulation in blind retinas

N. A. L. Chenais, M. J. I. A. Leccardi, et al.

Retinal prostheses show promise in restoring vision for the blind, yet current trials indicate certain limitations. Discover POLYRETINA, a cutting-edge epiretinal prosthesis boasting 10,498 independent pixels, achieving remarkable spatial resolution for mid-peripheral vision in retinitis pigmentosa patients. This exciting research was conducted by Naïg Aurelia Ludmilla Chenais, Marta Jole Ildelfonsa Airaghi Leccardi, and Diego Ghezzi.

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Abstract

Retinal prostheses aim to restore vision in the blind, but current clinical trials reveal limitations. This paper introduces POLYRETINA, a wide-field, high-density photovoltaic epiretinal prosthesis with 10,498 independent pixels. Single-pixel illumination induced retinal ganglion cell responses at safe irradiance levels, achieving high spatial resolution (equivalent to the 120 µm pixel pitch). This suggests potential for mid-peripheral artificial vision in retinitis pigmentosa patients.

Publisher

Communications Materials

Published On

Mar 05, 2021

Authors

Naïg Aurelia Ludmilla Chenais, Marta Jole Ildelfonsa Airaghi Leccardi, Diego Ghezzi

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