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What Do You Know About Eyeglasses?

Eyeglasses, defined in Wikipedia, are frames bearing lenses worn in front of the eyes. They are formerly used for vision correction; later for eye protection, either from foreign matter or from harmful rays. In fact, they can be a major part of person image and expression as well.

Eyeglasses are thought to be one of the most important invention of mankind history, because without them, scientists may not be able to do precision researches and bring so many discoveries to us; without them, we ordinary people with eyesight problems will never observe the beautiful world around us clearly.

Since eyeglasses are so important to us, what do you know about them?

Eyeglasses emerge earlier than most of us imagine. The first recorded use of corrective lenses may have taken place around 1st Century AD in Rome, while the first pair of wearable eyeglasses was invented around 1284 in Italy by Salvino D’Armate. Since then, eyeglasses began their evolution, from those without legs to with legs; from those with glass lenses to high index plastic lenses; from those plastic frames to titanium frames, etc..

Then with different requirements of eyeglasses of different people, diverse types of eyeglasses are then invented.

Corrective glasses: the original corrective glasses are used to correct refractive errors of the eye–myopia, hyperopia or astigmatism, etc.. This should the most common type for people in their daily lives.

Safety glasses: they are mostly used by athletes or sports lovers, helping them prevent foreign bodies entering eyes; what’s more, for the fact that there is a greater chance for this kind of glasses to get broken and debris may fly into eyes, safety glasses are usually made with shatter-resistant plastic lenses.

Sunglasses: sunglasses provide protection against harmful rays from the sun, so as to reduce or stop the possibility of the emergence of kinds of eye disease. Additionally, nowadays sunglasses can be of both prescription or non-prescription, that is to say, if you are a person with eyesight problems who has to wear corrective glasses, you can also wear prescription sunglasses which both prevent harmful rays and provide a clear vision.

Presbyopia glasses: they include bifocals, trifocals and progressive lenses. The first two lenses are the traditional ones which have only two or three distinct horizontal viewing area, which are easily to make the wearers dizzy for the sharp transition between the focal points. Unlike the two, the last lenses give a smooth transition, providing the wearers a comfortable feeling.

3D glasses: they are specially designed for people to watch 3D movies. Due to the illusion of three dimensions on a two dimensional surface, 3D glasses can offer each eye with different visual information, making the image more real.

Of course there are many other glasses for different usages, for example glasses for watching the solar eclipse.

As for eyeglass styles, they are of a great variety, ranging from rimless glasses to boxy glasses. At present the most in style is those with thick, black and boxy or round frames, in a kind of restoring ancient way. In street, if you keep an eye on the passersby, you will find a lot of them wearing thick boxy or round glasses of different colors, and some of them even just wear glass frames without lenses, just for fashion.

Firmoo.com is the emerging online optical store selling high quality eyewear, such as prescription eyeglasses (single vision myopic glasses, reading glasses, bifocal and progressive eyeglasses etc.,), prescription sunglasses (with RX tinted lenses), prescription sports goggles. Firmoo guarantees lowest possible price in the market. Firmoo’s return and refund policy makes any purchase risk-free ones.

Article Source:http://www.articlesbase.com/vision-articles/what-do-you-know-about-eyeglasses-1668707.html

Eyeglasses-Savior of My Vision and Life

In the past, I always bear very complicated feeling towards eyeglasses. But now, I have to say eyeglasses have changed my life, or should to say have enhanced my standard of living. Let me tell you what have happened to me.

As a mailman, I had to deal with a lot of letters and other documents every day. And during the past twenty years, I found my eye sight suffered a lot. Particularly, about five years ago, I found my vision declined greatly. Objects around me became blurry and even I could not clearly see my colleagues’ faces.

Since then, I performed very badly in my work and I was reproached by my boss and I felt very disappointed. I did not know what to do or how to do? I had told this to my close friends and my wife. Their ideas fell into two opposite groups- some of them suggested me to do some natural eye exercises, whereas others suggested me to wear eyeglasses. The first group said those eye exercises were really nice and eyeglasses may lead to even worse vision degeneration. While the latter group affirmed that eyeglasses were useful and safe for me. Each group had raised a lot of examples and theories, and then I became confused. I did not know which of them was correct.

I had tried to do the exercises for some weeks, but I found it can not work, for each day I had to lower my head while working. I thought it was not a good idea to wear eyeglasses in such a rushing way. I needed more time to consider.

One weekend, I was scanning on some websites. Suddenly, some titles stroked my eyes. I could not control my excitement and read the information in one breath. I found this page very useful for me, or exclusively for me. I told myself I should reconsider my attitude towards eyeglasses. Maybe it was a good idea to search for more information about those glasses. I had spent all the weekend gaining such information.

After that, I decided to consult with some eye doctors, for I just wanted to assure that what I knew was correct. With the suggestions of those eye doctors, I confirmed that I was in need of eyeglasses.

More surprises were ahead of me, after I had entered the optical stores. I had bypassed optical stores many times, but never had I thought they are so fabulous. The optometrists had prescribed for me. I found those prescribed lenses very magical, for I could see anything before me. The staffs also suggested me to select some frames that I loved most. I could not decide which ones to choose from, for the items were dazzling. A last, I selected one frame that made me more like a gentleman.

With the new eyeglasses, I found my world became much brighter and people around me much kind-hearted. What surprised me most was my working performance had gained great praise.

Now, with my beloved eyeglasses, I think I have regained and gained a lot. My wife says I am much more attractive, my friends think I am more confident. And my boss always praise that I have done very good job. I just wonder why not wear eyeglasses earlier. Till now, I have not found any degeneration in my eye sight, but enhancement and happiness.

Firmoo.com is the emerging online optical store selling high quality eyewear, such as prescription eyeglasses (single vision myopic glasses, reading glasses, bifocal and progressive eyeglasses etc.,), prescription sunglasses (with RX tinted lenses), prescription sports goggles. Firmoo guarantees lowest possible price in the market. Firmoo’s return and refund policy makes any purchase risk-free ones.

Article Source:http://www.articlesbase.com/vision-articles/eyeglassessavior-of-my-vision-and-life-1663662.html

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