by mary hodder
In modern time, lots of people have to face the computer due to various reasons. And long time sitting at the computer will lead to some problems to eyes and vision. At this time, we need to prepare us a pair of computer eyeglasses, which can provide our eyes with considerate attention. With the help of these eyeglasses, we can avoid computer vision syndrome (short for CVS). CVS is related with eye problems and it may result in permanent problems in the long time.
What are computer eyeglasses? For many people, they may be the first time to hear of these eyeglasses. According to Dr. Wendy Strouse Watt of Macular Degeneration Support, computer eyeglasses are designed for frequent computer users. And these eyeglasses can help computer users to focus on things in the close distance.
These eyeglasses are different from reading glasses. Computer eyeglasses are used to correct vision at the arm’s length. More important, these eyeglasses can be used to relieve the symptoms that result in by long time using computers, such as dry eyes, eye strain and even headache.
Then, where can computer users can get these computer eyeglasses and which kind of them are available for them? If you are going to buy computer eyeglasses, you can get from the local optical stores or online optical stores. If you need to wear prescription computer eyeglasses, you’d better visit optometrist to gain accurate prescription. And there are different kinds of prescribed lenses for computer users, which are single vision, trifocals, progressive and bifocal lenses.
Different lenses have different functions, and computer users need to choose them depending on their own situations.
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Read more: www.newscientist.com A working model of an ancient computer was recently recreated in London.
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