caption: The image shows a black and white drawing of a spiral staircase, which is a representation of the structure of the human eye. It is a detailed illustration of the inner workings of the eye, with intricate details such as the ridges and grooves that make up the structure. The spiral staircase is composed of a series of interlocking loops and curves, and the eye itself is surrounded by a halo of light, giving it a mysterious and captivating look.