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Inducement and Evaluation of a Murine Model of Experimental Myopia
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A wireless battery-free eye modulation patch for high myopia therapy.

Tianyan Zhong1, Hangjin Yi2,3, Jiacheng Gou4

  • 1School of Physics, University of Electronic Science and Technology of China, Chengdu, 611731, China.

Nature Communications
|February 26, 2024
PubMed
Summary
This summary is machine-generated.

This study introduces a wireless, battery-free eye patch to treat high myopia by shortening axial length. The device uses ultrasound power and delivers drugs to strengthen the sclera, offering a new clinical treatment for myopia.

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Area of Science:

  • Ophthalmology
  • Biomedical Engineering
  • Materials Science

Background:

  • Proper axial length is essential for emmetropia.
  • High myopia poses significant clinical challenges and relapse risks.
  • Current treatments for high myopia have limitations.

Purpose of the Study:

  • To develop and evaluate a wireless, battery-free eye modulation patch for correcting high myopia.
  • To investigate the patch's efficacy in reducing axial length and enhancing scleral strength.
  • To demonstrate a novel approach for myopia treatment and relapse prevention.

Main Methods:

  • The patch integrates piezoelectric transducers, an electrochemical micro-actuator, a drug microneedle array, and μ-LEDs.
  • Wireless power and control are achieved via external ultrasound.
  • In vivo experiments were conducted on rabbit eyes.

Main Results:

  • The patch successfully reduced rabbit eye axial length by approximately 1217 μm.
  • Scleral strength was increased by 387% through riboflavin delivery and collagen cross-linking.
  • The system demonstrated effective, battery-free operation within the body.

Conclusions:

  • The wireless, battery-free eye modulation patch is a promising technology for treating high myopia.
  • The device effectively shortens axial length and strengthens the sclera.
  • This innovation offers a potential new clinical avenue for myopia management and relapse prevention.