Infrared Contact Lenses Give Wearers Night Vision

Scientists have developed contact lenses that allow humans and mice to perceive near-infrared (NIR) light without the need for external power or bulky night-vision goggles. The lenses use nanoparticles to convert NIR wavelengths (800–1600 nm) into visible light (400–700 nm), enabling wearers to see both visible and infrared signals, including coded messages and basic shapes even with closed eyes. Human trials demonstrated the technology's effectiveness, though image clarity is currently limited by light scattering. Researchers improved image sharpness by incorporating nanoparticles into glasses and aim to enhance sensitivity to lower infrared levels. Potential applications include security, rescue, encryption, assistance for the visually impaired, color blindness, and enhanced vision in foggy or dusty environments. Despite challenges and some skepticism about immediate practical use, the development marks a breakthrough in wearable superhuman vision technology.