A biomimetic ocular prosthesis system: emulating autonomic pupil and corneal reflections

Seongchan Kim, Yoon Young Choi, Taewan Kim, Yong Min Kim, Dong Hae Ho, Young Jin Choi, Dong Gue Roe, Ju-Hee Lee, Joongpill Park, Ji-Woong Choi, Jeong Won Kim, Jin-Hong Park, Sae Byeok Jo, Hong Chul Moon (), Sohee Jeong () and Jeong Ho Cho ()
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Seongchan Kim: Sungkyunkwan University
Yoon Young Choi: University of Illinois at Urbana Champaign
Taewan Kim: Sungkyunkwan University
Yong Min Kim: University of Seoul
Dong Hae Ho: Soft Materials and Structures Lab, Virginia Tech
Young Jin Choi: Yonsei University
Dong Gue Roe: Yonsei University
Ju-Hee Lee: Sungkyunkwan University
Joongpill Park: Sungkyunkwan University
Ji-Woong Choi: Korea Research Institute of Standards and Science (KRISS)
Jeong Won Kim: Korea Research Institute of Standards and Science (KRISS)
Jin-Hong Park: Sungkyunkwan University
Sae Byeok Jo: Sungkyunkwan University (SKKU)
Hong Chul Moon: University of Seoul
Sohee Jeong: Sungkyunkwan University
Jeong Ho Cho: Yonsei University

Nature Communications, 2022, vol. 13, issue 1, 1-9

Abstract: Abstract The human light modulation response allows humans to perceive objects clearly by receiving the appropriate amount of light from the environment. This paper proposes a biomimetic ocular prosthesis system that mimics the human light modulation response capable of pupil and corneal reflections. First, photoinduced synaptic properties of the quantum dot embedded photonic synapse and its biosimilar signal transmission is confirmed. Subsequently, the pupillary light reflex is emulated by incorporating the quantum dot embedded photonic synapse, electrochromic device, and CMOS components. Moreover, a solenoid-based eyelid is connected to the pupillary light reflex system to emulate the corneal reflex. The proposed ocular prosthesis system represents a platform for biomimetic prosthesis that can accommodate an appropriate amount of stimulus by self-regulating the intensity of external stimuli.

Date: 2022
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DOI: 10.1038/s41467-022-34448-6

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