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Anatomy of the eye
Our ability to see depends on the actions of many structures in and around the anatomy of the eye. The images below list several of the necessary elements of the anatomy of the eye and optical system.
Whenever you look at objects, light is reflected onto the cornea, which is where the miracle of the anatomy of the eye begins. The light is bent, refracted and focused by the cornea, lens, and vitreous. The lens makes sure the light focuses on the retina. The image displayed on the retina is upside-down. At the retina, light is converted to electrical impulses which are sent through the optic nerve and then to the brain, where the image is translated into an upright position!
Think of anatomy of the eye as a camera. Cameras needs a lens and a film to create an image. The anatomy of the eye requiures a lens (cornea, crystalline lens, vitreous) to focus or refract the light, and film (the retina) on which to focus the light. If one or more of these parts of the anatomy of the eye is not functioning properly, the resulting picture is of poor quality. The retina acts as the film in a camera. The retina captures the image, then sends it to the brain for development. The macula is an extremely sensitive area of the anatomy of the eye. The macula is handles our critical focusing vision. You use the macula in order to read, or stare intently at any objects.
Related links:
Do human eyes grow?
A diagram of a human eye
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