eye - THE EYE 2009 Abraham Dweck PH101 3/10/2009

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Unformatted text preview: THE EYE 2009 Abraham Dweck PH101 3/10/2009 http://en.wikipedia.org/wiki/Muscles_of_orbit physics.phy-astr.gsu.edu/hbase/vision/rodcone.html Abraham Dweck PH101 Professor Barnes 3/10/09 The Eye The eye is one of the more complex parts of a human being. It has many elements to it and each element has its own actions. In order to keep up with all of the different functions of the eye there are many doctors that monitor and check on the health of the eye. Through their experiments and history we have seen many malfunctions and diseases that can affect the way the eye functions. The eye is a very complex organ that detects light and sends signals along the optic nerve to the sight portion of the brain. The average size of the human eye is about one inch in diameter which is amazing when you think about just how much it does. The eye allows us to see and interpret the shapes, colors, and dimensions of objects in the world by processing the light they reflect or emit. The eye is able to detect bright light or dim light, but it cannot sense objects when light is absent 1 . The way that an eye works is that light waves enter the eye through the cornea, which is the clear part on the front of the eye. The light then passes through the pupil which is in the center of the iris, the colored part of the eye. The light waves are then sent to the back of the lens where the image has been reversed and inverted into the one you see. The light is then passes 1 1 http://www.tedmontgomery.com/the_eye/ through the vitreous humor (clear gel that makes up 80% of eye 2 ) which is then sent to the retina. Once inside the retina the light is transmitted into electrical signals that are sent along the optic nerve to the brain. http://www.99main.com/~charlief/Blindness.htm Each part of the eye has its own functions; here is each part and its function: 1. Ciliary Muscle - muscle in the eye that controls the eye's accommodation for viewing objects at varying distances. 2. Ciliary Body circumferential tissue inside the eye composed of the ciliary muscle and ciliary processes . 3. Aqueous Humor thick watery substance that is between the lens and the cornea....
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This note was uploaded on 09/30/2009 for the course IT 100 taught by Professor Pap during the Spring '09 term at Monmouth University-West Long Branch.

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eye - THE EYE 2009 Abraham Dweck PH101 3/10/2009

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