Eyes: Anatomy, Diseases, Prevention
Eyes: Anatomy, Diseases, Prevention Eyes are one of the most complex and fascinating parts of the human body. They allow us to see and perceive the world around us, and they play a crucial role in our survival and well-being. The human eye is made up of several different parts, each of which plays a specific role in the process of vision. The cornea, for example, is the clear outer layer of the eye that helps to focus light as it enters the eye. The iris, the colored part of the eye, controls the amount of light that enters the eye by adjusting the size of the pupil. The lens, located just behind the iris, further refocuses the light so that it can be clearly seen by the retina. The retina is a thin layer of tissue located at the back of the eye. It contains millions of light-sensitive cells called rods and cones, which convert light into electrical signals that are sent to the brain. These signals are then interpreted by the brain as images. There are two main types of cel