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

  • A team of scientists in China has created contact lenses that allow users to perceive near-infrared light even when their eyes are closed, with findings published on May 22, 2025.
  • The lenses work by embedding nanoparticles that absorb infrared wavelengths from 800 to 1,600 nanometers and emit visible light without requiring any power source, unlike traditional night-vision goggles.
  • Tests on mice showed they detected infrared light and preferred dark environments, while human trials demonstrated wearers could see flickering infrared LEDs and identify light direction, with clearer perception when eyes were closed due to infrared penetration of eyelids.
  • Lead researcher Tian Xue explained that their study could lead to the development of wearable technology that enhances human vision beyond normal capabilities, and highlighted that specially engineered nanoparticles might help those with color blindness by transforming infrared signals into colors visible to the eye.
  • While the lenses currently only detect strong LED sources and have limited image clarity due to light scattering near the retina, researchers plan to enhance sensitivity and spatial resolution for practical applications in security, rescue, and vision enhancement.
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La Vanguardia broke the news in Granada, Spain on Thursday, May 22, 2025.
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