Scientists have created a ‘smart’ contact lens that could help track the wearer’s health and monitor diseases such as diabetes and glaucoma.

Researchers at the Seoul University in South Korea created the soft contact lens to monitor fluid in the eyes for biomarkers that indicate the presence or severity of a particular disease.

The lenses are also able to be charged wirelessly, with a technique called ‘direct ink writing’ used to build tiny supercapacitors in the lens that can store electrical energy.

The lens can then be charged using an antenna system, meaning it can operate without needing to be charged externally.