
Retina
The retina is a thin layer of tissue located at the back of the eye that functions like a camera sensor. It captures light that enters the eye and converts it into electrical signals, which are then sent to the brain via the optic nerve. The brain processes these signals to create the images we see. The retina contains specialized cells called rods and cones—rods help us see in low light, and cones enable us to perceive color and detail. Overall, the retina is essential for vision, translating light into the visual information our brains interpret.