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Some Rules Of The Work At The Computer

August 21, 2011 By: lilybird Category: Desktop and Laptop

Children are endowed with high adaptability. Along with the positive aspects of this phenomenon, there is a negative: the children often do not notice the problems that would have paid attention to adults. For example, looking at the screen that displays the glare they do not even think about the need to change the position of the screen or isolate it from the light source. In addition, children may be overlooked poor vision caused by nearsightedness or farsightedness developing the belief that all people see as they are. Blurred vision almost always leads to increased fatigue and farsightedness can cause eye fatigue, even if the child sees well.

On the desktop monitors are usually placed with the expectation of an adult and children have to look at the screen from the bottom up, while the most natural and comfortable is looking down at an angle of 15 degrees. This mismatch can cause problems with the balance of the eye muscles. And when you consider that for children can be difficult to reach the keyboard, it becomes clear why after working with computers they hands, neck and back hurt.

We must remember that for a comfortable view of the child shall be exempt from the glare of light and bright light sources. Lighting should prevent problems with vision, rather than facilitate their emergence.

First of all, the light should not be too weak. Insufficient light leads to headaches, mostly in the forehead, appearing in mid or late afternoon. These pains are usually not available immediately after sleep, on weekends, have a different character as compared with weekdays, and may have a different intensity to the right and left. Symptoms such as fatigue, double images, red eyeballs, may also occur due to insufficient lighting. Too much light can also reduce the quality of perception of visual material, especially shown in the screen: the eye will be tired of having to adapt to different levels of illumination. That is why the recommended level of illumination in the computer lab is twice less than the level recommended for offices and conventional classrooms. Equally important is the spectrum of light. It affects performance, visual and mental productivity. Lamp, equipped with special filters that mimic the natural colors of the midday sun, markedly improve health of pupils. Optimal lighting is a difficult goal to achieve in practice because of tight budgets and strict cost savings. However, please note that approximately 86% of the total cost of coverage has to pay for electricity, and only 3% of the cost of the lamp. Therefore, a more economical purchase is not cheap, but quality lighting fixtures, saving electricity. Parents whose children somehow have to work with your computer, in turn, should remember the following:

1. The child must regularly attend the ophthalmologist. Timely identify irregularities in the visual system at an early stage of their development
2. You need to strictly limit the time of the work of a child with a computer. Every hour do ten-minute break. This reduces the likelihood of spasm of accommodation and eye irritation.
3. Carefully check your computer settings. The child should be easy to reach for the keyboard and look at the monitor from top to bottom. It may be advisable to purchase a chair with adjustable height seat and make a footrest.

These days, when computers are used practically in all fields of our life, having a computer is a must. There exist different brands to choose from. Those who are considering purchasing HP, might be interested in looking through this hp envy 14 review available on review hp envy 14 site. Should the model be of any interest it is advised to read some more hp envy 14 reviews to compare the laptop with others and make a grounded decision.

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