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'Super-Vision' Contact Lenses Let Wearers See in the Dark — Even with Their Eyes Closed

  • On May 22, 2025, a team of scientists in China unveiled contact lenses that enable users to perceive infrared light, which is typically invisible to the human eye.
  • The lenses incorporate nanoparticles that capture near-infrared light within the 800 to 1,600 nanometer range and emit it as light detectable by the human eye, all without requiring an external power source.
  • Tests on mice showed sensitivity to infrared light through pupil response and preference, while human trials demonstrated perception of flickering infrared LED light and detection of its direction, especially with eyes closed.
  • Tian Xue, lead neuroscientist, explained that the individual is unable to perceive any visuals without the special contact lenses, but once worn, they can distinctly detect the blinking of infrared light, suggesting promising applications in areas like security and emergency response.
  • While promising for enhancing vision and aiding colorblindness, the lenses currently only detect bright LED infrared light, have limited image resolution, and require further improvements before practical everyday use.
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La Vanguardia broke the news in Granada, Spain on Thursday, May 22, 2025.
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