Eye
The human eye is a complex and remarkable organ responsible for the sense of sight. It acts like a camera, capturing images and sending them to the brain for interpretation. Comprising various parts working together seamlessly, the eye allows us to perceive the world in vivid detail.
The outermost layer of the eye is the cornea, a transparent dome-shaped structure that helps to focus light onto the retina. Behind the cornea is the iris, the colored part of the eye, which controls the size of the pupil, regulating the amount of light that enters.
The lens, located behind the iris, further focuses the light onto the retina—a layer of tissue lining the back of the eye. The retina contains millions of light-sensitive cells called photoreceptors, which convert light into electrical signals.
These signals are then transmitted through the optic nerve to the brain, where they are interpreted as images. The brain processes these signals, allowing us to perceive shapes, colors, and depth.
Additionally, the eye is equipped with accessory structures such as eyelids, eyelashes, and tear glands, which help protect and lubricate the eye, keeping it moist and free from debris.
#learnwithcoral
The outermost layer of the eye is the cornea, a transparent dome-shaped structure that helps to focus light onto the retina. Behind the cornea is the iris, the colored part of the eye, which controls the size of the pupil, regulating the amount of light that enters.
The lens, located behind the iris, further focuses the light onto the retina—a layer of tissue lining the back of the eye. The retina contains millions of light-sensitive cells called photoreceptors, which convert light into electrical signals.
These signals are then transmitted through the optic nerve to the brain, where they are interpreted as images. The brain processes these signals, allowing us to perceive shapes, colors, and depth.
Additionally, the eye is equipped with accessory structures such as eyelids, eyelashes, and tear glands, which help protect and lubricate the eye, keeping it moist and free from debris.
#learnwithcoral