Ans: The eye is a wonderful sensory organ that detects and processes light, enabling us to perceive the environment around us.
The light enters the eye through the cornea which is the clear outermost layer. The light then passes through the pupil, the black center of the eye, which can change in size to control the amount of light entering. The lens behind the pupil helps to focus the light onto the retina at the back of the eye. The retina contains millions of photoreceptor cells, including rods for low-light and cones for color vision. These cells convert light into electrical signals. The electrical signals are sent via the optic nerve to the brain. In the brain, the visual cortex processes these signals, assembling them into a coherent image. The brain interprets this image, allowing us to perceive and make sense of our surroundings, including colors, shapes, and depth. Further processing in the brain enables us to recognize objects, faces, and scenes, and even to associate emotions and memories with what we see. Ultimately, this complex process results in our visual perception, which is our ability to see and understand the world around us, making vision one of our most vital senses.