Senses and the Endocrine System M5 Case

Senses and the Endocrine System M5 Case - Pamela Roberson...

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Pamela Roberson Senses and the Endocrine System Senses and the Endocrine System Pamela Roberson TUI University
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Pamela Roberson Senses and the Endocrine System Senses and the Endocrine System The eyes allow vision. However, normal vision is only possible if all parts of the eye are functioning properly. An image is formed in the retina, which is located at the innermost part of the eye. In order for an image to form, light should be focused in the lens. The lens changes its shape as distance of the object focused changes. Since the lens receives the image, it should be transparent and free from cloudiness. A cloudy lens is a characteristic of cataract, an eye condition that results to blurred vision (Eye Care Associates of East Texas, 2010). Cataract is an age-related eye condition. However, some middle-aged individuals may also have cataracts. But, then significant reduction of vision only occurs in people aged 60 and above. Normally, the lens, which is composed mainly of water and protein functions in focusing the light to the retina where image is converted to electrical impulses. In normal vision, water and protein in the lens are arranged in a way that it would not blur the lens. When cataract develops, there is
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This note was uploaded on 11/30/2011 for the course ANT 250 I taught by Professor Drlegg during the Fall '11 term at Trident Technical College.

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Senses and the Endocrine System M5 Case - Pamela Roberson...

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