Archive for the ‘Computer Vision’ category

Seven Tips for Computer Users to Protect Eyes

April 14th, 2011

Currently, the negative effects of computer to human’s physiology and psychology have gained more and more attention. Therefore, it is of great importance to use computer scientifically and reduce the damages brought from computer and network to the eyes. Well, how should the computer users protect their eyes effectively? Here are seven tips:

First, improve the awareness of self-care. Generally speaking, computer operators should rest for about 10 minutes after one-hour consecutive working. Moreover, they should strengthen the physical training to enhance their physical abilities.

Second, have a good working environment. The light in the computer room should not be too bright or too dark. It is necessary to prevent the screen from the direct light thus producing interferential light. The working room should have a good ventilation so as to allow the harmful gas to vent. Try to use non-impact printer to reduce noise.

Third, have a good operating posture.  The computer screen should be placed at the same level with the operator’s chest. It is better to use chairs that are adjustable. Don’t cross the feet so that to avoid influencing the blood circulation.

Four, pay attention to protect the vision. Don’t stare at the computer screen too long. If you find your eyes dry, red, burning, or if you cannot see clearly, or even if you feel swelling in the eyes or headachy you should go to see doctor immediately (Find you local eye doctor).

Five, supply nutrition. The computer operators’ rhodopsin that is composed of vitamin A will be consumed if they work in front of the computer too long. So, they should have such foods as carrot, cabbage, bean sprout, red date, orange as well as milk, egg, animal liver and lean meat in order to supply their vitamin A and protein.

Six, keep the skin clean. There is a great deal of static electricity on the computer screen surface. The dirt attaching to it can be transferred to the exposed parts of the face and hand. If this situation continues for a long time, macula and hyperpigmentation may easily occur. In serious cases, the operator will suffer from skin diseases.

Seven, wear radiation-proof glasses such as computer glasses. This cannot only protect your eyes from the radiation from the computer but also alleviate eyestrain effectively.

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Computer readers glasses

April 26th, 2010

The demand for computer readers glasses is increasing since both ordinary and netizens spend more and more hours in front of the computer everyday. Due to the simple operation of PC, the majority of people use computers, 80% of which are regular users. Some people just wear traditional glasses when sit before a computer. In fact, special computer readers glasses are needed. Staring at the monitor for over a two-hour period may cause discomforts such as eyestrain, blurred vision, headache, dry eyes etc… They are also called computer vision syndrome (CVS). The old may even suffer from sore neck. Both prescribed and non-prescription computer readers glasses can keep you away from CVS and even improve your vision. Computer readers glasses also reduce glare and provide UV protection.

The special lens of computer readers glasses is essential to reduce the eyestrain caused by staring at the monitor. Most of the modern computer readers glasses are lightweight and made of highly flexible stainless steel. A lower power is recommended for computer readers glasses. And your readers glasses should be in accordance with your exact prescription requirements.

Tinted lenses are used in computer readers glasses to reduce the too much blue light spectrum. Opticians often prescribe progressive lenses for more smooth vision. Custom-made readers glasses are usually better than pre-fabricated ones.

Clip-on computer readers glasses are also available and can be added to prescription glasses. They offer more convenience that you can simply switch between different situations.

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Vision health care of computer users

November 6th, 2009

Vision health care has become a routine part of computer users’ lives. Surveys show nearly 50% of adult computer users with a college education are myopia in USA, and a child in America spend several hours on a computer while doing homework, surfing the internet, playing video games and talking online with little regard for eye health care. Definitely, vision health care is becoming more and more important to computer users.

Many vision health care doctors who specialize in children’s eye health care say sustain computer use puts kids at higher risk for childhood myopia. Some people have a misunderstand in vision health care that it is necessary to wear a special eye protection when working on the computer, but according to eye health care experts, computer screens do not emit enough harmful rays to cause eye damage.

Relieving eyestrains is one of the important vision health care measures to computer users. As eye health care experts often pointed out, computer users should look up and far away about every 15 minutes preferably out a window or across a room. Also, a people who always work on a computer is supposed to see the vision health care practitioners for regular eye health care and exams, for computer users can develop vision changes, an outdated prescription may cause lots of eyestrain.

In addition, proper computer glasses are also good for computer users’ vision health care; they are available for those who have trouble focusing on a screen. Of course, a person who has urgent questions regarding vision health care, it is better to call an eye health care practitioner for personal vision health care advice on the treatment of one’s own specific condition.

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Task-specific computer glasses

October 13th, 2009

For those spend a significant amount of time each day working at a computer, computer glasses are needed. Computer glasses are special prescription glasses designed for computer screen reading. The computer screen is usually farther away than reading material is normally held so that your regular reading glasses are not suitable for computer work. The distance between your eyes and the computer screen is considered as the intermediate zone of vision. So the professional computer glasses are the right solution. Like piano glasses and shooting glasses, computer glasses are called task-specific glasses since they are created to meet the visual needs of special activities.

Computer glasses are capable of lessening the symptoms associated with computer vision syndrome (CVS). After prolonged computer work, the eyes and the brain react differently to words on the screen and to printed text. Then, CVS is caused. Symptoms often include eyestrain, dry eyes, headache and blurred vision. Accurately prescribed computer glasses will help relieve symptoms caused by CVS.

Before seeing your doctor for a pair of computer glasses, it is recommended to measure your exact work space, including the distance between your monitor and your eyes. This is essential to get the exact prescription of your computer glasses. Sometimes, anti-glare coatings may be added to the lenses of computer glasses in order to reduce the amount of glare from the computer screen.

Computer glasses have several types if equipped with different lenses. The simplest one is the single vision computer glasses, which provide the largest field of computer viewing. Flat-top bifocal computer glasses have a top part for computer vision and a bottom segment for closer reading. Variable focus computer glasses are much like progressive glasses.

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