Cutting-Edge Contact Lenses Allow People to Detect Invisible Infrared Light, Even with Their Eyes Shut

Researchers have created revolutionary contact lenses that enable individuals to detect infrared light, a spectrum that was formerly imperceptible to the human eye. This advancement utilizes “upconversion nanoparticles” that function by absorbing infrared light and transforming it into visible light in red, green, and blue, thereby expanding human color perception beyond its natural scope. In contrast to traditional night-vision equipment, which can be unwieldy and colorless, these nanotechnology lenses offer a colorful infrared perspective while preserving regular vision, improving situational awareness in various areas, including rescue missions and assistance for color blindness. With possible uses ranging from emergency navigation in low visibility to covert communication, these lenses represent a remarkable leap in optical abilities, potentially altering the way we see and interact with the world.