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. 2023 Nov 7;14:7181. doi: 10.1038/s41467-023-42240-3

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© The Author(s) 2023

Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.

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Fig. 4 — a Schematic of corneal reflex examination (left), and the process of corneal reflex (right). b Schematic of corneal reflex evoked by mechanical stimuli. c Configuration of artificial corneal reflex arc responding to mechanical stimuli. d Schematic of the structure of the electrochromic device. e, f Digital images (e) and optical transmittance spectra (f) of the electrochromic device under different stimulation voltages. g Refractive index and extinction coefficient of the electrochromic device under different stimulation time. h Schematic illustration of the Li⁺ ions and charge transportation through the electrochromic device. i Digital images of electrochromic actuators under bilateral reflex (I), without reflex (II), ipsilateral reflex (III), and contralateral reflex (IV).