
Rod cells
Rod cells are specialized cells in the retina of the eye that enable us to see in dim lighting or darkness. They are highly sensitive to light but do not detect color, providing the black-and-white, grayscale images necessary for night vision. Located mostly around the edges of the retina, rod cells help us detect movement and shapes in low-light conditions. When exposed to light, they become less sensitive, allowing cone cells to handle brighter, color-rich environments. Overall, rod cells are essential for peripheral vision and navigating in darkness, playing a critical role in maintaining sight when lighting is poor.