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Eyes

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[[File:Eye-diagram no circles border.svg.png|thumb|The human eye, via Wikipedia Commons]]The '''eyes''' are the visual organs of the body, and rest in two sockets halfway up the front of the [[skull]]. They are made up of several important parts:
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[[File:Eye-diagram_no_circles_border.svg.png|thumb|The human eye, via Wikipedia Commons]]The '''eyes''' are the visual organs of the body, and rest in two sockets halfway up the front of the [[skull]]. They are made up of several important parts:
   
 
*The [[cornea]], which is a clear lens covering the center of the eye. This focuses light on the back of the eyeball.
 
*The [[cornea]], which is a clear lens covering the center of the eye. This focuses light on the back of the eyeball.
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*The [[optic nerve]], which penetrates the back of the eyeball through the blind spot, together with the blood vessels that provide blood to the eye, and transmits nerve impulses to the [[brain]].
 
*The [[optic nerve]], which penetrates the back of the eyeball through the blind spot, together with the blood vessels that provide blood to the eye, and transmits nerve impulses to the [[brain]].
   
In humans, the eye sacrifices some sensitivity to light, sensitivity to movement and the ability to see at distance for the ability to see in color. For example, cats, alhtough they have poor color vision, see much better in low light and can detect motion that is indetectable to a human.
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In humans, the eye sacrifices some sensitivity to light, sensitivity to movement and the ability to see at distance for the ability to see in color. For example, cats, alhtough they have poor color vision, see much better in low light and can detect motion that is indetectible to a human.
   
 
There are several diseases of the eye, as well as others that cause symptoms in the eye, such as blurry vison, loss of tears and even blindness. These are often due to the effects of disease on the [[nerves]], ducts and [[blood vessels]] that go into the eye.
 
There are several diseases of the eye, as well as others that cause symptoms in the eye, such as blurry vison, loss of tears and even blindness. These are often due to the effects of disease on the [[nerves]], ducts and [[blood vessels]] that go into the eye.
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