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An eye is an organ of vision that detects light. Different kinds of light-sensitive organs are found in a variety of organisms. The simplest eyes do nothing but detect whether the surroundings are light or dark, while more complex eyes can distinguish shapes and colors. Many animals, including some mammals, birds, reptiles and fish, have two eyes which may be placed on the same plane to be interpreted as a single three-dimensional "image" (binocular vision), as in humans; or on different planes producing two separate "images" (monocular vision), such as in rabbits and chameleons.
Varieties of eyes
In most vertebrates and some mollusks, the eye works by allowing light to enter it and project onto a light-sensitive panel of cells known as the retina at the rear of the eye, where the light is detected and converted into electrical signals, which are then transmitted to the brain via the optic nerve. Such eyes are typically roughly spherical, filled with a transparent gel-like substance called the vitreous humour, with a focusing lens and often an iris which regulates the intensity of the light that enters the eye. The eyes of cephalopods, fish, amphibians, and snakes usually have fixed lens shapes, and focusing vision is achieved by telescoping the lens—similar to how a camera focuses.
More on [ Eye ]
Hustlers we dnt sleep we rest one eye up ....yea bout to take a nap
guywillz (Guy Willz) Wed, 06 Jan 2010 00:31:16 -0000
Hustlers we dnt sleep we rest one eye up ....yea bout to take a nap
I've had "Eye of the Tiger" stuck in my head for the past hour and all I can picture is Jensen. lol.
kjklovesjoej (Kaitlyn Kampen) Wed, 06 Jan 2010 00:29:27 -0000
I've had "Eye of the Tiger" stuck in my head for the past hour and all I can picture is Jensen. lol.
think i'm done with my titty fit now. although, there has been some eye leakage and i have major shakes
LETSGETJAGKED (danny devine) Wed, 06 Jan 2010 00:29:19 -0000
think i'm done with my titty fit now. although, there has been some eye leakage and i have major shakes
Lightys hurts my eye http://flic.kr/p/7twGrw
swanksalot (Seth Anderson) Wed, 06 Jan 2010 00:28:07 -0000
Lightys hurts my eye http://flic.kr/p/7twGrw
@MsMarcJacobs @vuittongunnz @msprat cross my heart hope to die stick a needle in my eye I'm trying to go lol word to big bird I'm grubbin
ellustriousE (âArt Vandelayâ) Wed, 06 Jan 2010 00:24:49 -0000
@MsMarcJacobs @vuittongunnz @msprat cross my heart hope to die stick a needle in my eye I'm trying to go lol word to big bird I'm grubbin
@wvterry Miss you too! Hope you're having a good year! I'll go into work tomorrow with my eye out for cool lizards!
Finch93 (Shawn Finch) Wed, 06 Jan 2010 00:24:49 -0000
@wvterry Miss you too! Hope you're having a good year! I'll go into work tomorrow with my eye out for cool lizards!
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