Rhodopsin is a light-sensitive receptor protein found in the retina of the eye, specifically in rod cells. It plays a crucial role in vision by capturing light and initiating a signal cascade that eventually leads to the perception of visual stimuli. Rhodopsin undergoes a conformational change upon absorbing light, triggering a series of biochemical reactions that ultimately result in the transmission of visual information to the brain. Studying rhodopsin and its function is important for understanding the mechanisms of vision and developing treatments for various eye disorders.