system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why can we see better in the dark with our peripheral vision?
gpt
Our eyes have two types of receptors in them that interpret visible light into what you see, called rods and cones. They are spread over the retina, the inner back surface of the eyeball, but they are not spread evenly. Rods are better able to detect low light, so they are responsible for seeing in the dark. Cones are better able to detect colours in well lit conditions, so we use them most of the time. There are mostly cones near the middle of the retina, and mostly rods near the edges, which is why you can see better in the dark with your peripheral vision.