How Light Travels - Eye Labelling Diagram

In the study of optics, understanding how light travels through the eye is fundamental. An eye labelling diagram serves as a visual aid to identify and learn about the different parts of the eye involved in this process. The pupil, located at the centre of the iris, is the opening through which light enters the eye. Surrounding the pupil, the iris is the coloured part of the eye that controls the size of the pupil, thereby regulating the amount of light that can enter. Once past the pupil, light travels through the lens, a transparent structure that focuses light onto the retina at the back of the eye.

The retina is a light-sensitive layer that contains cells which respond to light and convert it into electrical signals. These signals are then transmitted to the brain via the optic nerve, allowing us to perceive images. The sclera, commonly referred to as the 'white of the eye', is a tough protective outer layer that maintains the shape of the eyeball. In front of the eye, the cornea, a clear dome-like structure, helps to focus incoming light onto the lens. Each part of the eye works in harmony to capture and process light, enabling us to see the world around us.