Korea Advanced Institute of Science and Technology (KAIST), in collaboration with Seoul National University Bundang Hospital, a pharmaceutical company, and the Electronics and Telecommunications Research Institute, has pioneered the world’s first wireless contact lens –based platform for retinal diagnostics. This breakthrough replaces conventional electroretinography (ERG), which typically requires a stationary Ganzfeld device in a darkroom, with a simple wearable system powered by ultrathin organic light-emitting diodes (OLEDs) technology. ERG is a diagnostic test that evaluates retinal function and is commonly used to detect hereditary eye diseases or monitor retinal decline.

The team integrated a flexible 12.5 μm OLED several times thinner than a human hair into a contact lens electrode, along with a wireless antenna and control chip. This innovation enables ERG testing by merely…