Ruyi Yang, Peng Zhao, Liyang Wang, Chenli Feng, Chen Peng, Zhexuan Wang, Yingying Zhang, Minqian Shen, Kaiwen Shi, Shijun Weng, Chunqiong Dong, Fu Zeng, Tianyun Zhang, Xingdong Chen, Shuiyuan Wang, Yiheng Wang, Yuanyuan Luo, Qingyuan Chen, Yuqing Chen, Chengyong Jiang, Shanshan Jia, Zhaofei Yu, Jian Liu, Fei Wang, Su Jiang, Wendong Xu, Liang Li, Gang Wang, Xiaofen Mo, Gengfeng Zheng, Aihua Chen, Xingtao Zhou, Chunhui Jiang, Yuanzhi Yuan, Biao Yan, Jiayi Zhang
Retinal prostheses could restore image-forming vision in conditions of photoreceptor degeneration. However, contrast sensitivity and visual acuity are often insufficient. Here we report the performance, in mice and monkeys with induced photoreceptor degeneration, of subretinally implanted gold-nanoparticle-coated titania nanowire arrays providing a spatial resolution of 77.5 μm and a temporal resolution of 3.92 Hz in ex vivo retinas (as determined by patch-clamp recording of retinal ganglion cells)...
November 23, 2023: Nature Biomedical Engineering