Scientists have developed contact lenses that allow humans to see in the dark by converting invisible infrared light into visible signals that the eye can detect.
Created at the University of Science and Technology of China, these innovative lenses use nanoparticles that absorb infrared light and make it visible. They have been successfully tested on mice and humans, with the mice choosing dark boxes over those with infrared lights, and the humans detecting invisible flashing infrared signals without the lenses.
The lenses work well even with the eyes closed, as infrared easily passes through the eyelids. Unlike night vision goggles, they do not require batteries or external power, relying only on ambient light, with soft and safe materials suitable for everyday use.
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