Scientists have created infrared contact lenses that reportedly enable people to see in the dark — and even more surprisingly, while their eyes are closed.
The University of Science and Technology of China team created wearable lenses with flexible polymers and nanoparticles that enable night vision without goggles. The findings were published on May 22 in the journal Cell.
During testing, participants wearing the lenses were exposed to flickering lights and were able to recognize patterned images.
Tian Xue on Infrared Lens Breakthrough
Lead researcher Tian Xue of USTC said subjects saw nothing without the lenses but could easily detect flickering infrared light when wearing them.
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Xue noted participants saw flickering signals more clearly with eyes closed, as near-infrared light passes through eyelids better than visible light.
Nanoparticle Modifications in Lenses for Color Blindness
He explained that modifying the nanoparticles allowed the lenses to show a wider color range, aiding those with color blindness.
According to Xue, converting red light into green could help make otherwise indistinguishable colors visible to color-blind users.
He added that this breakthrough highlights the potential of non-invasive wearable technology to enhance human vision.
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Xue noted that participants saw the flicker more clearly with eyes closed, as near-infrared light passes through eyelids better than visible light.
Nanoparticle-Enhanced Lenses Expand Color Perception for Color Blindness
He explained that modifying the nanoparticles let the lenses show more colors, helping those with color blindness.
According to Xue, converting red light into green could help make otherwise indistinguishable colors visible to color-blind users.
He added that this breakthrough highlights the potential of non-invasive wearable technology to enhance human vision.
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