Facts - Eye Diagram & Glossary
Eye Diagram & Glossary  |  About Your Eyes | Eye Diseases

Retina (RET-ih-huh):
The lining of the rear two-thirds of the eye, the retina converts images from the eye's optical system into electrical impulses sent along the Optic Nerve to the brain.

Vitreous (VIT-ree-us):
The transparent, colorless, gelatinous mass that fills the rear two-thirds of the interior of the eyeball, between the lens and the retina.

Glossary of Terms:

Cornea (KOR-nee-uh):
The transparent front "window" of the eye that covers the iris and pupil, and provides most of the eye's optical power.

The transparent, biconvex lens of the eye helps bring rays of light to focus on the retina.

Macula (MAK-yoo-luh):
The small, specialized central area of the retina, the macula is responsible for acute central vision.

Optic Nerve:
Carries impulses for sight from the retina to the brain.

The variable-sized black circular opening in the center of the iris, the pupil regulates the amount of light that enters the eye.

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