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sclera
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is a tough covering of the eye which gives the eyeball its shape.
cornea
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The cornea acts as the eye's outermost lens. It functions like a window that controls and focuses the entry of light into the eye.
lacrimal glands
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are paired, almond-shaped, glands, one for each eye, that make the aqueous layer of the tear film.
Iris
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It is responsible for controlling the diameter and size of the pupil and thus the amount of light reaching the retina.
Pupil
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is a opening, which regulates the amount of light entering the eye.
Ciliary Muscles
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They hold the sense in place.
Aqueous Humor
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Fluid filling the space in the front of the eyeball between the lens and the cornea and nourishes them.
Lens
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is clear, transparent, and convex shaped. It is located behind the iris. It helps to focus light and images on your retina.
Vitreous humor
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is a jelly like substance which holds the internal structure of the ye in place.
Retina
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is a thin layer at the back of the eye which is sensitive to light. When an images forms on the retina, a message travels to the brain.
Choroid
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is a layer behind the retina which contains blood vessels to nourish the retina.
Macula
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is a area on which sharp images are formed. The macula holds the highest concentration of cone cells.
Fovea
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In the eye, a tiny pit located in the macula of the retina that provides the clearest vision of all.
Optic Disk
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holds no photoreceptors which means no images are formed which means its a blind spot.
Blind spot
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is an area on the eye where it does not contain light-detecting photoreceptor cells.
Optic Nerve
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connects the eyes to the brain sending the images to the occipital lobe.

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