What is the primary function of photoreceptors in the eye?

The primary function of photoreceptors in the eye is to detect light. These specialized cells, located in the retina, are sensitive to light and convert it into electrical signals that are transmitted to the brain, allowing us to perceive images. There are two main types of photoreceptors: rods, which are responsible for vision in low-light conditions, and cones, which detect color and function best in bright light. This essential role allows the visual system to interpret the environment based on the light information received, enabling us to see.

Options related to sound vibrations, pressure sensing, and fluid balance pertain to different sensory systems and functions, which are not related to the role of photoreceptors in vision.