Rods and cones are usually found in what part of the eye?

Light perception: The retina has 10 layers and the bottom layer is made up of the rods-that perceive light and dark and movement, and the cones-that perceive color. Cones are mainly in our center vision and rods in the side vision. Light hits the rods and cones (called photoreceptors) and they convert the light signals into electro-chemical signals that are transmitted to the brain.

The retina: The retina is the light sensitive structure in the eye. One may think of it as the film in a camera, or the light sensitive chip in a digital camera. Each rod or cone like a pixel. The rods "see" black and white and are very light sensitive (think: night vision), while the cones "see" color, but need more light to function. The fovea (are of central vision) is about 90% cones.