Contact lenses let you see in the dark, even with eyes closed
In a development worthy of a Bond film, Chinese scientists have invented contact lenses that allow a wearer to see in the dark — even when their eyes are shut.
The lenses have enabled users to detect infrared light, a portion of the electromagnetic spectrum usually invisible to the human eye.
Unlike bulky night-vision goggles, which also pick up infrared, they do not require power from batteries. Instead, tiny nanoparticles are embedded into a type of flexible, transparent polymer material already used for conventional contact lenses.
The particles absorb infrared light and convert it to red, blue and green wavelengths, which the human eye can see.
'Our research opens up the potential for non-invasive wearable devices to give people super-vision,' said Professor Tian Xue of
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