AR glasses work by overlaying digital information on the real world through a combination of cameras, sensors, and displays. These glasses capture the user's environment and use computer vision algorithms to identify surfaces and objects. The system then projects 3D graphics or data onto the lenses in real-time, creating an interactive experience. This technology is used for applications like navigation, gaming, and instructional tools, enhancing the user's perception and interaction with their surroundings by providing contextual data that enriches reality.