Contact lens developed to detect bacteria and fungus

Researchers at the University of Bradford have developed a smart contact lens that could quickly and non-invasively test for eye infections.

Stephen Rimmer, professor of chemistry at the University of Bradford, said the smart hydrogel lens could detect two types of bacteria and fungus.

‘This device is made from materials that are similar to those used to make contact lenses, which would be safely applied to the eye. The microorganisms get stuck to the material and can then be analysed,’ professor Rimmer said.

Current tests required a sample of the patient’s eye to be taken under anaesthetic and then the sample must be cultured for up to two days before it was studied under a microscope. Professor Rimmer’s test involved the patient wearing a contact lens for an hour and results were provided soon after.