What is the main function of rods in the human eye?

Rods are photoreceptor cells located in the retina of the eye and are primarily responsible for vision in low-light conditions, making them essential for night vision and seeing in dimly lit environments. Unlike cones, which are responsible for detecting color and providing detailed vision, rods are more sensitive to light but do not detect color. They function effectively in low illumination, allowing us to perceive shapes and movements rather than fine details. This specialization for low light allows humans to navigate and recognize objects in dark conditions. Thus, the main function of rods aligns perfectly with the ability to see in low light conditions.