Japanese researchers develop contact lenses that shield eye from radiation

Researchers from Waseda University, Yamaguchi University Hospital and Kyoto University have developed contact lenses that protect the eye from electromagnetic radiation to limit the risks attached to wearable technology.

Writing in Small Science, the authors highlight that smart contact lenses with electronic circuits are rapidly advancing but there are concerns over electromagnetic radiation exposure.

To address this issue, the scientists developed contact lenses coated in MXene nanosheets – a material with high conductivity, biocompatibility and strong electromagnetic shielding.

The researchers found that the contact lenses reduced radiation exposure, while also enhancing dehydration protection.

When tested in rabbit eyes, the contact lenses did not result in inflammation or adverse effects.

Waseda University academic and lead author, Professor Takeo Miyake, shared that contact lenses with built-in electronic components are receiving attention as “the next big thing” in wearables.

“For the first time, though, this means we’ll be placing wireless circuit lenses directly on our corneas, exposing them to electromagnetic waves around the clock. Inspired by breakthroughs in 2D materials and device fabrication technologies, we came up with highly functional protective contact lenses,” he said.