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Essay 9 - Vision

Essay 9 - Vision - I walk to my local library I see the...

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Sharon Ng Psychology 1 May 18, 2009 Psychology Essay #9 – Vision This audio covered some interesting aspects of vision. It discusses the science, psychology, and art of vision - how the eye and mind work together in perception, and how we can learn to use our eyes to their full potential. The visual system in humans allows humans to take in information from the environment. Seeing starts when the lens of the eyes focuses an image of its surroundings onto a light-sensitive membrane in the back of the eye, called the retina. The retina is part of the brain that is isolated. It works as a transducer for the conversion of patterns of light into neuronal signals. The lens of the eyes focuses on the photoreceptive cells of the retina, which detect photons of light and respond by producing neural impulses. These signals are processed by different parts of the brain. Being able to see is a miracle from God. Because most of us have vision to guide is in everyday life, we don’t take enough time to show appreciation for having them. Sometimes when
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Unformatted text preview: I walk to my local library, I see the same man walking across the street with his guide dog. I cannot help but think about how unfortunate he must be without his vision. Without vision, he cannot see the food that he is eating, watch the beautiful sceneries on vacation, or see other people’s faces and interact with them like people with normal vision can. Those with impaired vision, such as colorblindness are also limited in what they can see and the colors of certain objects. With my eyes, I can do so much more, like read, write, and drive to places I need to get to, like school or work. I can be independent and not have to worry about getting run over by a car or having to rely on a guide dog every time I wanted to go out. I am very interested in the study of vision and I hope to pursue my studies at UC Berkeley’s optometry school, as I hope to become an optometrist someday!...
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Essay 9 - Vision - I walk to my local library I see the...

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