Explaining The Universe on Instagram: "Follow (us) @ExplainingTheUniverse to learn something NEW every day 🧠 Human eyes work like a camera, capturing light and turning it into signals the brain can understand. Light enters through the cornea and passes through the pupil, which controls how much light comes in. The lens then focuses the light onto the retina at the back of the eye. The retina contains special cells called rods (for dim light and black-and-white vision) and cones (for color and d