Experts said if you want to have a pair of fabulous eyeglasses online which is suitable to you.Your have to pay attention to frame and lens. The best choice of a customers is the sunglasses that fit the shape of your face, and at the same time feel comfortable and protect the eyes from the harmful external rays. Because a pair of glasses which can match your clothes easily and protect your eyes are the main usage. With two functions in hand, it enables us to protect eyes and be charming.

According to scientific study, British wholesale group BOOTS has pointed out that lenses of pink, blue, green or other bright colors may twist the wearers’ vision and make them can not see some colors clearly. People of special professions, for instance drivers, should be cautious on making decision. When you are buying sunglasses, choose those that have CE marks to make sure a certain degree of UV blocking. Generally, sunglasses possess no strength, in other words, their diopter is 0. Thereby, you should try the prescription sunglasses on lest that they should make you a feeling of dizzy and head aches.

Now there are also some sunglasses that have certain strength available in the market. However, pupil distance is various for different people, so, without the guidance of professionals, consumers had better not choose the sunglasses with strength. Put the sunglasses flatly on the counter; if they can’t keep even, it suggests that there’s something wrong the frame. When choosing, hold the sunglasses legs against a lamp and make the reflecting strips on the lenses move steadily. If the reflection of the daylight lamp turns out wavy and twisty, it proves that the lens are not smooth. Such lens will harm your eyesight.

The eyes are very sensitive, so the priority should be given to the quality of the lens when you are choosing sunglasses. High transparency, smooth lenses and the ability to filter ultraviolet light are required. On formal occasions, please do not hang the cheap glasses on your collar, which will make you look undignified.

Nowadays, more and more people like to wear colored prescription sunglasses and prescription sunglasses. In fact, many people wearing reading glasses don't know how to select the color of glasses correctly. Now let me show you some ideas which are helpful in selecting the correct color for your eyeglasses lenses.

Grey lens or gradual lens that turns to light slowly from up to down shall be preferred by most people. Their effects of transmission to various visible light are almost the same. Tea color lenses is clever choice as well, They has one character that it is good to see distant objects. Comfort and relaxation can be found in a light green lens. In order to match your dress, and make-up, with the other light is not bad.

Some certain colors can be used only in industry for protecting. For example:

• scarlet is for X-ray medical staff.
• Yellow lenses enable shooting athletes to see clearly even in foggy days.
• Shooting athletes prefer to choose yellow ones to see clearer.
• Blue lenses are used by steelmaking workers in front of high temperature furnaces.

Workers who make steel choose blue lenses. Some jobs require a good sight of clearance, color-identifying and distance. What will happen if you fail to do so?

What will happen if they don’t do so?

Everyone cares about their skin in summer, while few notices that eyes also need sun protection. In fact, researches have shown that ultraviolet ray may cause such eye diseases as keratitis, cataracts and retinal detachment. The harm it may bring to your eyes can never be neglected. So, we should prevent eyes from harmful UV.

Please don’t look up into the sun. The eyes are very fragile. A short-term exposure to sunlight will cause temporary shadow before eyes. It is likely to get pain, tears, inflammation and blurred vision if you look at sun directly for a long time.

Eyes are the most sensitive part to UV, and they can absorb UV in all wavelengths. Among them, the wavelength of 280 nanometer is the worst, as it is the cause of conjunctivitis of ultraviolet radiation. The UV rays with the wavelength of 290-400nm are harmful to lens, which would result in cataract.

Studies indexes that one more hour every day you expose to the sunlight, the 10% more possibility you may get cataract. And now we should talk about some precautions.

When you go out, you should wear a cap or take an umbrella, and at the same time wear a pair of reading glasses to protect your eyes from being exposed to the sun directly. What is noteworthy is that the quality of sunglasses is very important to the health of eyes. The sunglass of of inferior quality, which has a simple layer of colour on the glasses, will hurt your eyes by enlaring the apple of your eyes, rather than protect them.

For your eyes sake, it is better to choose eyeglasses frams with high quality so that they function well in protecting your eyes. Medical researches have shown that sunglasses with neutral and grey lenses are the best ones. It is not good to choose sunglasses whose lenses are too dark because such sunglasses may expose your eyes to the ultraviolet ray more easily. If you are a contact lenses wearer, you can also choose contact lenses of anti-UV which are able to cut 90% ultraviolet radiation. It will be better to wear a pair of cheap eyeglasses.

You’d better not go outside at noon when the sun is strong and are likely to threat the security of skin and eyes.

The reading glasses have been the must-have articles for fashion guys in summer. As to the invention of sunglasses, there are many different versions. It is nature that every country wants to be the cradle of sunglasses which are very popular now. But there is only one. Where is it?

Now, there are at least three countries claiming that they invented eyeglasses firstly. 500 years ago, some Spanish missionaries mentioned in their books that they brought glasses back from China, but it is a pity that there is no tangible object as a proof. Another version goes like that: 500 year ago, Eskimo used a kind of goggles that were made of wood. Actually, there were two seams on a long plank, which surely can’t be viewed as sunglasses.

It is convincible that modern sunglasses were invented by European. The image of Douglas MacArthur, the U.S. general of air force, with a corncob pipe in his mouth and a pair of AO dark glasses, has been deeply rooted among the people At the same time, more and more hollywood stars have begun to be fond of wearing this kind of dark glasses. So the prescription eyeglasses became popular among common people. The flyer sunglasses have become the forever classics.

In the 1950s, Elvis Aron Presley's music was spreading all over the world. His iconic ducktail hair style, together with his dressing up wearing a pair of goose egg style dark glasses connected with a piece of downward-pointing triagle iron, was being imitated by an army of young people. When it came to 1960s, the Beatles was leading a vigorous music culture movement which swept the whole world and meanwhile completely buried Elvis Aron Presley’s dynasty.

The small-bois iron thin-spectacle-frame round glasses often resting on John Lennon's nose and the dark glasses of the same style also influenced the exterior trend of all dark glasses at that time. Glasses were becoming more and more round, plump, and their designs were more and more courageous.

While in 1970s, the exterior of glasses developed back to the angular style little by little. Plastic sunglasses with slick broadside and round corners were more and more popular. The lenses came with gradual changing colors as well. The famous fashion designer Yves Saint Laurent weared such a pair of glasses in those days.

Till 1980s, the rectangle style of clear edges and corners developed to its peak. Karl Lagerfeld, the designer who took over the Chanel in 1983 was one of the representatives. This kind of sunglasses which seemed to be square was accompanied with him all the year. The image of his wearing dark glasses had early been applied to brand designing, and Karl Lagerfeld, Teddy Bear and Karl Lagerfeld Bag were the best examples.

In 1990s, the trend of fashion became more and more diversified day by day, not only the glasses style of prolate and evolution color lens, but also goggles and ski goggles have ever been the most popular fashionable accessories. And the old borderless sunglasses are no longer grandparents' monopoly. Various rimless eyeglass frames with embedded objects, gold, wood, gem or leather, all can be the trend.