United Kingdom, May 25 -- Scientists have developed contact lenses that enable people to see in the dark.

Researchers from the University of Science and Technology in Hefei, China, have created the unique item can only detect infrared radiation from an LED light.

But the team is working to improve the sensitivity of the nanoparticles, which absorb the invisible light from the infrared radiation and turn it into visible wavelengths.

This is so the contact lenses can find lower levels of infrared light that is invisible to human eyes.

The scientists combined the nanoparticles with flexible and non-toxic polymers that are used in ordinary contact lenses - thin lenses placed on the eyes so people can see clearly - and the results showed p...