 Eye: Anatomy
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1) anterior chamber - the front section of the eye's interior where aqueous humor flows in and out of providing nourishment to the eye and surrounding tissues.
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2) aqueous humor - the clear watery fluid that moves in the eyeball.
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3) blood vessels - tubes (arteries and veins) that carry blood to and from the eye.
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4) caruncle - a small, red portion of the corner of the eye that contains modified sebaceous and sweat glands.
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5) choroid - the thin, blood-rich membrane that covers the white of the eyeball; responsible for supplying blood to the retina.
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6) ciliary body - the part of the eye that produces aqueous humor.
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7) cornea - the clear, dome-shaped surface that covers the iris and pupil. A contact lens rests on this part of the eye.
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8) hyaloid canal - narrow passageway that allows blood to flow through the eye.
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9) iris - the colored part of the eye. The iris is partly responsible for regulating the amount of light permitted to enter the eye.
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10) lateral canthus - lateral (side) angle of the eye.
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11) lens (Also called crystalline lens.) - the transparent structure inside the eye that focuses light rays onto the retina. Lens opacification refers to "cataract" formation.
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12) lower eyelid - lower, inferior, less mobile fold that covers the front of the eyeball when closed.
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13) macula - the portion of the eye that allows us to clearly see fine details.
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14) medial canthus - medial (middle or center) angle of the eye.
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15) optic nerve - a bundle of nerve fibers that connect the retina with the brain. The optic nerve carries signals of light, dark, and colors to the area of the brain (the visual cortex), which assembles the signals into images (i.e., our vision).
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16) posterior chamber - the back section of the eye's interior.
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17) pupil - the opening in the middle of the iris through which light passes to the back of the eye.
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18) retina - the light-sensitive nerve layer that lines the back of the eye. The retina senses light and creates impulses that are sent through the optic nerve to the brain.
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19) sclera - the white visible portion of the eyeball. The muscles that move the eyeball are attached to the sclera.
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20) suspensory ligament of lens - a series of fibers that connect the ciliary body of the eye with the lens, holding it in place.
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21) upper eyelid - top, movable, superior fold that covers the front of the eyeball when closed.
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22) vitreous body - a clear, jelly-like substance that fills the center of the eye.
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At birth, the eye of a full-term infant is about 65 percent of the size of the adult eye. Growth occurs rapidly during the first year and then begins to slow down. After the onset of puberty, there are few changes of the eye or eye structures.
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