What is the primary function of the rods in the retina?

The primary function of the rods in the retina is indeed related to light sensitivity in low-light conditions. Rods are photoreceptor cells that are highly sensitive to light and are primarily responsible for vision in dim lighting. They allow us to see in low-light environments but do not contribute to color vision or the perception of fine detail. Instead, rods help to facilitate night vision by detecting the presence of light rather than its color, enabling us to perceive shapes and movement in the dark. This makes them essential for seeing in situations where light is minimal, such as during twilight or nighttime, while the other options relate to different aspects of visual perception managed by other photoreceptors or visual mechanisms.