Eyeglasses including a lens unit including a pair of lenses and a frame, a supporting unit supporting the lens unit, a camera mounted on the frame, a projector mounted on the frame and configured to project content on a screen, and a processor configured to control the camera and the projector. A method of controlling eyeglasses, including generating a first projector image to be projected on a screen by a projector mounted on the eyeglasses, obtaining a camera image from a camera mounted on the eyeglasses, and generating a first user input signal by analyzing the camera image.