The Internal Eye

 

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Inside the eye and not normally visible is the lens which is a clear oval shape. It is held in place by thin ligaments. It changes shape to focus light from near or far objects.

The retina is a lining inside the eye. It receives light rays and sends messages along the optic nerve to the brain. The small central part of the retina, the macula is the part capable of seeing fine detail.

The fluids in the eye (aqueous and vitreous) maintain the correct shape and pressure in the eye.