Researchers from Pohang University of Science and Technology (POSTECH) published a new study on Nature Reviews Materials with their development of 'Smart Light-emitting diode (LED) Contact Lens,' which enables diagnosis of diabetes and treatment of diabetic retinopathy. Professor Sei Kwang Hahn and his research team including his PhD student, Geon-Hui Lee, invented a smart photonic contact lens and a wearable medical device which can diagnose diabetes and treat diabetic retinopathy in collaboration with the research group led by Zhenan Bao from De...