Study on Artificial Imaging at The Peripheral Retina Region
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1) School of Electronics, Peking University, Key Laboratory for the Physics & Chemistry of Nanodevices, Beijing 100871, China;2) Peking University Sixth Hospital, Peking University Institute of Mental Health, NHC Key Laboratory of Mental Health (Peking University), National Clinical Research Center for Mental Disorders (Peking University Sixth Hospital), Beijing 100191, China;3) Department of Ophthalmology, Peking University Third Hospital, Beijing key laboratory of restoration of damaged ocular nerve, Beijing 100191, China

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This work was supported by a grant from the National Key Research and Development Program of China (2017YFA0701302).

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    Abstract:

    Objective For people with impaired central vision, novel artificial optical devices can provide access to simplified images by projecting them onto retina regions out of the macula, thus allowing them to utilize peripheral vision to perceive information. We investigate perceptual characteristics of peripheral visual field and provide clues for the design of implantable optical artificial vision devices.Methods We propose an experimental environment for investigating perceptual characteristics of peripheral vision, in which pattern stimuli of symbols, numerals, and Chinese characters are applied to the subjects, with variables including the size, the color combination, the eccentricity, and the motion controlled. The relation between perceptual capability and the variables are analyzed using graphical methods.Results The perceptual capability declines as the eccentricity increases, forming two appreciable trends, and it is significantly influenced by color combination and size.Conclusion Variable combinations with considerable perception rate are provided. The results may promisingly act as a reference for the implantation of artificial optical devices in eyes, the development of color symbol codes for special communication, etc.

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LIN Yan-Ni, LI Yan-Cheng, GE Song, ZHOU Tian-Hang, DONG Wen-Tian, LIU Zi-Yuan, DANG Wei-Min, XU Sheng-Yong. Study on Artificial Imaging at The Peripheral Retina Region[J]. Progress in Biochemistry and Biophysics,2023,50(12):3000-3009

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History
  • Received:February 19,2023
  • Revised:November 09,2023
  • Accepted:April 14,2023
  • Online: December 22,2023
  • Published: December 20,2023