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Anatomy of the Eye

The retina lines the back part of the eye. It receives the light and transmits its signal to the brain. Similar to the eye being a camera, the retina is the film in the camera.

The macula is the part of the retina responsible for sharp central vision.

The optic nerve carries the signals from the retina to the brain. As compared to a camera, the optic nerve is the battery of the camera.

The vitreous is the jelly-like substance that fills the center part of the eye.
 
The choroid is the layer that holds blood vessels that feed the retina.

 
The cornea is a clear front cover of the eye.
 
The sclera is the white outer layer of the eye.

The iris is the colored part of the eye. It controls the amount of light that enters the eye.

The pupil is the opening in the iris where light comes through the eye.

The lens is the transparent tissue that helps brings light into focus on the retina.

A healthy retina is important for clear, sharp vision.
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