Researchers at the Nanyang Technological University (NTU) in Singapore have developed an innovative micrometer-thin battery that can power smart contact lenses and be charged with tears, according to a university press release.

Contact lenses have traditionally been used for vision correction, but with advancements in technology, companies have been working on creating smarter versions that can connect to devices like smartphones and display information directly to the wearer’s eyes. However, these applications require the lenses to have an internal battery.

In the past, Interesting Engineering has reported on how companies have incorporated augmented reality displays into smart contact lenses. These devices typically use thin batteries with induction coils and metal wires, which can pose risks to the user’s eyes.

To address this issue, a research team led by Assistant Professor Lee Seok Woo from NTU’s School of Electrical and Electronic Engineering (EEE) has developed a battery that eliminates the need for metals. This breakthrough battery can be powered by tears, making it a safe and efficient solution for smart contact lenses.

The development of this micrometer-thin battery opens up new possibilities for the future of wearable technology. With its ability to power smart contact lenses without the use of metals, it could revolutionize the field and pave the way for even more advanced and comfortable wearable devices.

For more information on this groundbreaking research, you can read the full article on NTU Singapore’s website.

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