Eye Strain as a Result of Computer Use
In the twentieth century, technology is at an all time high in the world. This technology includes research, stock market shares, computers, medical advances, and a vast variety of other things. Among the advanced technology is a break through of computer use. Almost everyone at sometime in their day is using a computer for one task or another. Computers have taken the world and reshaped the possibilities of ideas and dreams in the past decade. Millions of people are using a computer daily according to
Anshel (1996). This work on the computer can ran range from five minutes a day to eight hours a day depending on they type of job a person holds. Today's job market, employees are accustomed to working with a computer. This could include data entry clerks, an internet consultant, a bank teller, a librarian, and especially secretaries. The field is open to just about anyone. Often overlooked are the students that use computers on a daily basis. Many college students depend on the use of computers classes whether it be for fun or recreational use.
Sometimes the convience of using computers comes with a high price to pay. The National Institute of Occupational Health and Safety (NIOSH) says that eyestrain is the leading problem in computer use. This even exceeds such common problems as carpal tunnel syndrome. (Atencio 1996) Eyestrain and eye fatigue lead to many other complications if it is a continuous problem. One of these problems includes myopia. There are many ways of relieving eye fatigue and helping the symptoms of myopia. These problems can be onset in younger years when children are in school. Since most schools in the country are using computers as a main source of education, eyestrain can be a linked to myopia. There are many options people or companies have to improve the conditions under which the person is working.
Eyestrain is defined as blurred or double vision, burning, irritation, headaches, gritty eye sensation, eye fatigue, neck and shoulder pain, color perception change, decreased visual efficiency, more frequent errors and reduced efficiency. (Atencio 1996, Palmer 1993, Nunoo 1997) Eyestrain is also known as asthenopia. It simply means visual strain. (Palmer 1993) Dr. Paul F. Bommarito also said that 88% of heavy computer users experience these problems. (Fletcher 1996) Palmer suggest that eye fatigue is often caused by the eye muscles becoming tired much like other muscles in our body.
Optometrists have accepted vision therapy, which is a medical treatment for optical muscle disabilities, as a feasible treatment used for eye related problems; claiming the treatment can strengthen vision and give the patient the opportunity to understand visuals quicker and clearer (Press). Vision therapy originated in the 1950s and over the past 25 years, has gained popularity, mainly because of new technological innovations in the field of treatment. Generally, vision therapy is prescribed as a measure mainly for people between the ages of 3 and 18. With the results from a comprehensive series of eye tests, the optometrist can work with the patient using special instruments—prisms, filters, occluders, and eye lenses—and strengthen the eye muscles, thus improving sight. According to optometrists in favor of vision therapy, these methods of treatment using these instruments function as safer routes to repair eye disabilities. Although vision therapy can yield favorable results, the practice as a treatment for innate eye disabilities has been in hot debate lately; as it can exceed $8000 and insurance companies do not cover the treatment. For decades, insurance companies have refused to accept vision therapy as a legitimate method for repairing eyesight (Boink). Concomitant with lack of insurance, the cost for a full treatment can exceed $8000, and doctors cannot guarantee a successful outcome. Recently, parents of children with eye related disabilities, such as amblyopia (lazy eye) and strabismus (cross-eye), and doctors have attempted to cooperate with public schools to allow families access to school-funded doctors to practice vision therapy. With a tight budget, most schools cannot afford to supply vision therapy, and a...
The ancient civilizations of Mesopotamia and Egypt began to develop circa 3,000 B.C. Located near rivers, the lands offered fertile soil and an excess of crops that drew in many people. As more people arrived, the small settlements flourished into large, thriving civilizations. Many aspects of Mesopotamia and Egypt, such as their cities, their strongly organized government, and their religion, greatly contributed to the success of these two civilizations.
What similarities and differences did Egypt and Mesopotamia have and why was Egypt more politically unified than its neighbor, Mesopotamia? I think in order to answer these questions it is important to look at how both societies lived. Egypt and Mesopotamia were two civilizations existing during the time period of 2000-1200 BCE.(text, 97) These civilizations were shaped by their environment, involved with trade, and faced changes in government after the 100 year drought; however, they differed in that Egypt was shaped by the Nile, traded goods for goods and changed their outlook on the pharaoh who was ruler of all; whereas, Mesopotamia was shaped by the Tigris and Euphrates, traded money for goods, and had a ruler over rulers. The governed harmonic life style of Egypt led this society to be more politically unified; whereas, Mesopotamia’s government led to many different ways of structure, thus creating a less unified society.
Religion, an inseparable part of civilization, influenced people a lot. Both Egyptians and Olmecs were polytheistic, so in general they were quite similar. They had various gods and respected to them. The pharaohs and shamans were regarded as incarnation of gads, or they can intervene with supernatural world. Also people will had ceremonies for different purposes.
To understand the actual differences of charter and public school quality of education, it is important to emphasize a fact often lost in the debate; namely, charter schools are public schools, which simply operate under different guidelines. This reality is more critical because of how perception clouds it. Charter schools are perceived as private institutions, supporters of them tend to be conservatives who feel the schools represent the value of competition in education, while opponents typically express the need for public school reform as more crucial in promoting educational equality (Rofes, 159). This political and ideological compone...
Public and charter schools may look to be the same, but charter schools differ in many ways and have an interesting origin that is often overlooked. The concept of charter schools began in New York City around the late 1980s and early 1990s by a man name Albert Shanker. They were originally created to be teacher-run schools that would provide education and services to students struggling in the traditional school system (Karp, 2013). These schools had operated outside the administrative bureaucracy and the big city school board. Shanker initial concern was that these small charter schools were dividing the district by serving a different population with unequal access as well as weakening the power of teacher union in negotiation over district-wide policies and regulations (Karp, 2013). Because of this Shanker withdrew his support, but charters had continued to grow and states were ...
Many of the American colonists brought with them from Europe a belief in witches and the devil. During the seventeenth century, people were executed for being witches and follower of Satan. Most of these executions were performed in Salem, Massachusetts in 1692. Mostly all of the accused were women, which makes some modern historians believe that the charges of witchcraft were a way of controlling the women who threatened the power of the men. During the witchcraft trials, hundreds of arrests were made, and some were even put to death on Gallow’s Hill (Karlsen 145). In 1698, the villagers of Salem won the right to establish their own Church. They chose the Reverend Samuel Parris as their minister. Many of the villagers were then sorry that they had done so because of his harsh demands. They then vowed to force him out. There was much pressure surrounding the Parris family. The children of the family would entertain themselves by listening to stories told by Tituba, their slave (National Geographic). January of 1692 is when the mass hysteria of the Salem witch trials first began. The Puritans of this time were very harsh, unyielding, and quick to judge. They condemned innocent women on the basis of intangible evidence, confessions, and such things as "witchmarks" (Hill). As Dorcas Hoar said, "I will speak the truth as long as I live" (Salem Home Page). Nine year old Betty Parris and eleven year old Abigail Williams, the daughter and niece of Reverend Parris, were the first to start to display signs of strange behavior. Some of this behavior included profane screaming, convulsive seizures, trance-like stages, and unexplainable animal-like noises. Shortly after this, other Salem girls began to demonstrate this same behavior. (Salem Home Page). The girls’ torment "could not possibly be Dissembled", stated Cotton Mather (National Geographic). Unable to determine any physical cause for the symptoms and behavior, doctors concluded that the girls were under the influence of Satan. Prayer Services and community fasting were organized by the Reverend Samuel Parris in hopes of relieving the evil forces that supposedly plagued the community. Efforts to expose the witches were also performed. The first three women to be identified as the source of the problem were Tituba, an Indian slave, Sarah Good, and Sarah Osbor...
Myopia is a condition in which visual images come into focus in front of the retina of the eye. This condition causes objects at a distance to appear blurry, while objects nearby are seen clearly. If not severe, myopia can be treated with contacts or glasses. Other treatments for myopia include photoreactive keratectomy (PRK), LASIK, and orthokeratology. Degenerative myopia is a quick progression of myopia and leads to complete loss of vision. The treatment for degenerative myopia is a combination of medication and laser surgery.
The ancient cultures of Mesopotamia and Egypt developed into successful civilizations. One civilization the Egyptians developed was in the Nile River valley. Based off the "Mesopotamia and Egypt DBQ" packet, "Ancient Egypt was an advanced civilization in many areas including religion, architecture, transportation, and trade. Ancient Mesopotamia was one of the first civilizations that developed a form of government as well as organized people in political states." Based on the documents, Egypt and Mesopotamia developed into successful and advanced civilizations by effectively using the resources that surrounded them to solve problems and live happily.
Both the early Egyptian and Indus civilizations have religious and geographical similarities and differences. A key similarity is in their choice to settle along river valleys for agricultural and security reasons. They were also isolated from the rest of the world, which is probably why they are unique and provide an interesting subject of discussion and study to
Science and technology go hand in hand. Scientific discoveries result in technology advancements for the people. In today’s technological world, it has progressed to a whole new level. This type of modernization opened doors for new and improved computers, cell phones, medical treatment, and machinery. In a reference article, “Computers and the Internet in America: Modern World” by Christopher Cumo, he discusses how computers and the internet have impacted human life since the 20th century. Technology has always been a part of society and as
The Egyptian and Mesopotamian religion and society were similar, but their government/leadership was different. Religion in Egypt and Mesopotamia were very similar because both faiths were polytheistic and had priestly authority. Both cultures had powerful priests, both had a belief of an afterlife, and religion was part of their daily lives. Both societies had similar rigid social classes, relied on slavery; both also had a religion which played an important role in their daily lives. Although, their societies were very common, they still had some differences in government. The Egypt, the government was a theocracy, whereas the government in Mesopotamia was run by a monarchy. Despite their similarities, the differences between these two civilizations were most likely a result of unique geographical and topographical conditions.
The human eye is one of the most complex organisms in the human body and the lens is one of the most impressive structures within it! Despite being slightly over two centimeters in diameter, the human eye has over two million moving parts. Sight is a rapidly occurring process that involves continuous interaction between the eye, the nervous system, and the brain. The lens is a key component of the eye which, coupled with the cornea, focuses images onto the retina. This is easily achieved by the lenses biconvex shape, refractive index, clarity, and youth. In our younger years we have the ability to bring near objects into focus by the act of accommodation. Ciliary muscle shortening allows the lens to take on a more curved shape. Human vision can be limited by the optical quality of the eye, especially by the presence of a cataract. Cataracts are a very common age-related visual problem and the number of cataract operations performed is continuously on the rise; approximately 20 million surgeries were performed in 2010.
Your environment can play a huge role in how astigmatism can affect your daily life.
The computer evolution has been an amazing one. There have been astonishing achievements in the computer industry, which dates back almost 2000 years. The earliest existence of the computer dates back to the first century, but the electronic computer has only been around for over a half-century. Throughout the last 40 years computers have changed drastically. They have greatly impacted the American lifestyle. A computer can be found in nearly every business and one out of every two households (Hall, 156). Our Society relies critically on computers for almost all of their daily operations and processes. Only once in a lifetime will a new invention like the computer come about.