Peripheral Vision: Does Glasses Or Contacts Help The Best?

712 words - 3 pages

Our peripheral vision is the part of our vision that occurs outside of our central vision. This means our peripheral vision occurs on the sides of our eyes. The reason we have peripheral vision is to see objects and movement out of our central vision. What we see in our peripheral vision is blurrier than direct vision.
Our eye is made up of three tunics, also known as layers. The first tunic contains the transparent cornea and the scelra. The sclera is the white of the eye. It helps maintain the shape of the eye. The transparent cornea allows the light to come through and completes two thirds of the focusing process. In the transparent cornea there are no blood vessels, but there are nerves. The second tunic consists of the iris, the ciliary body, and the choroid. The iris is the colored part of the eye. It also controls the how much light can enter the eye. The ciliary body consists of the muscles that adjust the body of the lens. The choroid supplies all the tunics with blood from the vessels it contains. The last tunic holds the retina. “The retina is a light sensitive membrane.” (Baggly152) The retina is where light rays enter and the image is created.
In our eye, the parts of our eye have much to do and have to do it extremely quickly. So the things we see aren’t upside down and the colors are mixed up. First, the lights enters into our retina, where the picture is created upside down. Then before the image enters into the brain, it goes through the visual cortex. In the visual cortex the image turns right side up and it passes through the brain. The eye has to do that under a second.
Rods and cones are categorized as photoreceptors. They are both found in the retina. Rods cannot process color. Cones can process color, but only green, red,and blue light. We have 126 million and 6 cones. Rods and cones are mostly found in the center of the eye. Since very few cones and almost no rods are at the sides of our eyes, so our ...

Find Another Essay On Peripheral Vision: Does Glasses or Contacts Help the Best?

How does logic help us clarify or solve problems?

1459 words - 6 pages Everyday people employ the use of logic to help them clarify or solve problems. Logic may only provide validity or highly probable ideas, but the correct answer, if any, is left for one to decide. The science of thinking and rationalizing, logic is like a double-edge sword. When logic is utilized it may become an efficient tool, capable of discovering correct ideas and understandings. Yet, it can also become an unsolvable maze, causing more

The Best Immigration Policy or the Worst?

2623 words - 10 pages The Best Immigration Policy or the Worst The Immigration Reform and Control Act of 1986 (IRCA) is viewed as one of the most important policy implementations in U.S. immigration history. As drafted, IRCA proposed to be a policy to control and deter all illegal immigration into the U.S., but the policy was truly directed at stopping the flow of Mexican immigrants that continues to be the largest immigration flow in the world. Daniel Tichenor

Is giving money to the poor really the best way to help them?

946 words - 4 pages be destroyed upon digging deeper and recognizing the problems in the lives of underprivileged. It is commonly said, "Help the poor by giving them money". But, the idea that giving poor people money is really the best way to help them, should be reconsidered. We should not provide poorer individuals with monetary aid because it is unknown what and where the individuals will spend their money, they will continue to be a burden on the shoulders of

Ritalin: Not the Best Treatment for ADHD or ADD

1285 words - 5 pages in the same place as when he or she began taking it. Although Ritalin has an important part in treating children with behavior problems it does not work miracles. Especially, when there are other forms of treatment that are better but being ignored. From personal experience, I believe Ritalin is not the best treatment for ADD or ADHD. In third grade, because of my extreme misbehavior my teachers and counselors lead them to believe I had ADHD

The Pros and Cons of the Smartphone: Does It Really Help Our Lives?

2191 words - 9 pages , how are you today? I love you tons!” scrawled and sent in a few seconds. I can call my boss at work to reschedule a shift if I am unable to make it (and vice versa), I can call the electric company, phone company and the gas company to purchase their services or pay my bills from home, and I can also call 911 to get help quickly in case of an emergency. Although the benefits seem endless, and they outnumber the negatives, it is my opinion that

How does a Value Chain analysis model help the organisation develop and deliver sustained competitive advantage?

2956 words - 12 pages ( to Porter (1985) an organisations activities are divided into two types; primary and support activities. Theses are Primary activities which are directly concerned with the creation of a product or delivery of a service and in a manufacturing organisation which consists of; Inbound Logistics which are the activities concerned with the inputs into the organisation such as materials handing, storage and distributing

"To What Extent Is Ralph Bunche's Vision For The International System The Best Benchmark By Which We Should Measure The Effectiveness Of The United Nations Today"

1105 words - 4 pages today would be the U.N, our founding fathers helped us realize the beauty of peace and freedom, Ralph J Bunche, the first American ambassador to the U.N following the principles set forth by our founding fathers drew the architectural plan to help the U.N in striving towards it's ultimate goal of finishing the pyramid of global peace.A person who belongs to the most vilified and persecuted minority in history is not likely to be insensible of the

Does Plato succeed in demonstrating that philosophers make the best rulers?

1880 words - 8 pages In Plato's most famous work, the 'Republic', he puts forward the view that the ideal state, embodying the highest and best capabilities of human social life, can really be achieved, if the right people are put in charge: "There will be no end to the troubles of humanity...till philosophers become kings in this world, or till those we now call kings and rulers really and truly become philosophers, and political power and philosophy thus come into

Gainer or mourner - Which role does the mistress in

1039 words - 4 pages Gainer or mourner - Which role does the mistress in a love affair with a married man play? Love affairs with a married partner involved used to have a wicked touch in our society in former times, but today, after the sexual revolution, it seems that the subject has lost a little bit of its delicate character. However, when discussing love affairs people still tend to see a sexist part in the topic. They often put the feminine lover in the role

Creature or Monster? How does Shelley's presentation of the Creature

1855 words - 7 pages Creature or Monster? How does Shelley's presentation of the Creature and Frankenstein create sympathy or horror at different stages of the novel? Who is the real monster? The novel "Frankenstein" was written by Mary Shelley as a teenager during the 19th century. It was set in Germany in the 18th century, as this was a time of exploration and discovery with scientists and astrologists challenging the accepted order of things and breaking

In What Ways does the Director William Freidkin try to make The Exorcist an unconventional experience for the audience, how does that help to trig

1199 words - 5 pages – topics that remained hidden in society then and now. Therefore, The Exorcist remains to be one of the best horror films with nine nominations at the Oscars, winning Best Sound, and Best Screenplay and the only horror movie to haunt people 40 years later. Firstly, Freidkin’s uncanny use of mise-en-scene depicts an eerie and peculiar trigger that establishes the emotional response of the audience feeling entrapped in certain scenes. For instance, the

Similar Essays

Does Hunting Help Or Hurt The Environment

1581 words - 6 pages Luke Widenhouse Mr. Zahran ENG-111 29 April 2014 Does Hunting Help or Hurt the Environment Those who oppose hunting as it stands today, please step forward. The question whether if hunting is helping or hurting our environment has been an ongoing yet debatable issue for a little while now. A variety of arguments have been made about this issue. It is definitely a big issue because it concerns the well-being of many different people nationwide

Does Technology Harm Or Help? Essay

770 words - 4 pages give children the energy they need for the day ahead. If kids do not get the amount of play, they may not do anything the rest of the day besides play on the computer or watch television. Children also use the television to play video games. Video games help children's reflexes for live events and can also help kids make faster choices in life. Most parents or guardians say that video games cause violence in children and teenagers, but the truth

Does Economic Liberalisation Help Or Hinder Peacemaking?

1931 words - 8 pages Does economic liberalization help or hinder peacemaking? ! Economic liberalization is a term that refers to fewer regulations and government intervention in an economy, in essence opening up the market to private entities both foreign and domestic (Chaudhary, 2008). It is heavily linked with the political philosophy's of Neoliberalism and modern day conservative liberalism (Harvey, 2005). Economic liberalization includes measures such as

Does Exercise Help The Brain? Essay

1746 words - 7 pages Lets all go for a run: does exercise really help the brain? Should I go run a marathon, join a yoga class, or head off to the gym? Is it really worth the time and effort? Afterall, sitting down and watching television can seem just as appealing. Why even bother working out? The reasons to work out may be greater than you think. Physical activity can make you feel good, keep you in shape, keep you healthy, but now researchers also are