Self-healing contact lenses repair scratches with just one hour of UV light exposure

Engineers have developed a revolutionary new type of contact lens that can self-repair scratches using just one hour of UV light exposure, potentially eliminating the need for costly replacements. The lenses are made from a special hydrogel that activates a chemical reaction when exposed to UV light, effectively mending minor scratches. This innovation could not only save wearers money but also reduce the environmental impact of discarded lenses, marking a significant advancement in wearable technology.