The Human Eye: A Diagram
Source: Courtesy of the National Eye Institute
- The clear outer part of the eye's focusing system, located at the front of the eye.
- The center of the macula; gives the sharpest vision.
- The colored part of the eye that regulates the amount of light entering the eye.
- A clear part of the eye behind the iris that helps to focus light, or an image, on the retina.
- The small sensitive area of the retina that gives central vision. It is located in the center of the retina and contains the fovea.
- Optic Nerve
- A bundle of more than one million nerve fibers that carries visual messages from the retina to the brain.
- The opening at the center of the iris. The iris adjusts the size of the pupil and controls the amount of light that can enter the eye.
- The light-sensitive tissue lining at the back of the eye. The retina converts light into electrical impulses that are sent to the brain through the optic nerve.
- Vitreous Gel
- A clear gel that fills the inside of the eye.