[K-8] Innovative Devices and Systems for Advanced Imaging and Sensing

[K-8-04] Development of Thin Film Retinal Prosthesis with CMOS Smart Electrode Array

〇Kaige Pan¹, Ronnakorn Siwadamrongpong¹, Takanori Hagiwara¹, Makito Haruta¹, Yukari Nakano², Takurou Kouno², Yasuo Terasawa², Hironari Takehara¹, Hiroyuki Tashiro^1,3, Kiyotaka Sasagawa¹, Jun Ohta¹ (1. Nara Institute of Science and Technology (Japan), 2. Nidek Corp., Ltd. (Japan), 3. Kyushu Univ. (Japan))

Presentation style: Online

https://doi.org/10.7567/SSDM.2022.K-8-04

Retinal prosthesis reconstructs vision by electrically stimulating the remaining normal retinal cells of patients with age-related macular degeneration and retinitis pigmentosa. The purpose of this study is to develop a device that can be safely implanted into patients for a long period. We successfully develop a flexible retinal prosthesis with the CMOS smart electrode array. By mounting CMOS chips in the device, the device can work with only four wirings. Simulating the in-vivo environment using a rat, a biphasic stimulation current waveform is confirmed with our device.