When we choose glasses , we should first determine our purpose. Are we wearing them for sun shading, the clothing matches or just for decoration? Apart from shading sunlight, is there any anti-ultraviolet requirement? Is there any special requirement on the safety performance of lenses? Only when we make these purposes clear and combine styles and actual effects together, can we buy appropriate sunglasses.

In order to protect the health of the eyes, you can choose the sunglasses with anti-ultraviolet function to eliminate the ultraviolet below 380nm as far as possible. The lens of the sunglass which has the function of safe guarding is made of PC chips and other resistant materials. For motorcyclists, drivers and other consumers who have special requirements on the safety performance of the lens, it is a good choice.

When buying the products, consumers should ask for intact overwraps, which are the promise for the function of the products from the manufactories. Or let the merchants specify these additional protective functions on the invoice, as soon as the event of disputes, you would not be passive due to lack of evidence.

You should choose the colors of sunglasses according to the places for activities. The color of prescription glasses must be dark enough so that they can keep out summer strong light efficiently. But people who ride a bike or drive a car should not choose lans with dark color, otherise, the discriminate judgements would be affected or even worse, accidents would happen.

The color of lens can not be partial, and it should not make the color of the surrounding environment distort. Observe objects of red, green and yellow before wearing sunglasses. Then wear the sunglasses and observe the same objects, which can test whether the colour of the lenses have any problems.

It is best to choose light gray, brown or smoke color sunglass lens. Followed by green, amber, blue and so on, the red is only used when you are in the sun or snowy places. People will be vulnerable to suffer eye diseases with improper wearing sunglasses. There is no need to wear sunglasses in cloudy days and indoors.

Regardless of occasion and sunlight intensity, some people are always wearing the sunglasses. This would definitely increase the burden of eyes accommodation as well as the stress and tiredness of eye muscles, which would cause ision loss. The infants and children whose visual system development is still not perfect should not wear sunglasses.

The wearing resistance of other sunglasses is not good except those made of glass. Users should watch the surface of rx sunglasses frequently. When the wearing and tearing is affecting the clearness, you should replace them in time.

A survey shows that in front of the computer for 3 hours or more a day, 90% people of eye problems, showing symptoms are: dry eyes, headaches, irritability, fatigue, difficulty with concentrating. The computer sight syndrome is the typical xerophthalmia. Medical glasses experts believe that it is a new type of disease. About more than half computer users have the symptoms more or less now and then or frequently.

Medical specialist thinks that symptom of computer vision syndrome is eyes hot, eyes dryness, eyes acerbity, eyes congestion. As well as sensitivity to light when serious, eyes open problems, eye pain and other conditions, but at the beginning of symptoms, the patient is not paid attention, and then it was because adjust to the "habit" of these symptoms. Do not hold the view that everyone who uses computers feels eyes dry and tired. It will result in delayed treatment and increased risks of structural problems like imbalances of tear secretion.

Some patients become severe sensitivity to light, even in the indoor environment they should also wear dark glasses in order to feel more comfortable when looking at objects. When eyes on the screen, appearing unusual eyes dry, eyes tired and other discomfort symptoms, it's best not to over-use eye. Doctor suggest that this time so long as give the eyes a rest in eyeglasses advance for a week, then pay more attention when you look "computer health" of the main points at the screen and have adequate rest, basically this disease has been

However, if delaying treatment for months, it May cause visual health of structural problems, appearing to reduce secretion of tears, tears component imbalance and other performances, it needs to go to the hospital with a long-term drug treatm Medical experts believe that when the problem has been involved in tear secretion of the structural problems, people need to use medicines to supplement the lack of moisture, fat or protein.

But need to note that when dry eye slightly occurs, do not wrongly use eye drops, because some of the syrup containing the preservative composition, dripping would increase the disease. So be sure to go to hospital for treatment, follow the doctor's medication recommendations. In addition, oral drugs such as fish oil pills can effectively enhance the moisture degree of eyes, many patients’ condition has been improved after ta Do not put the computer beside the window to avoid the light shining from overhead. It will cause reflection and unclearness of computer screens. The top height of the computer screen should be slightly lower optical than the apparent horizon of the eye, and the most ideal placing location is the place where the computer center of the screen should be lower than the apparent horiz

Keep a distance of 60 cm between the computer screen and your eyes. Blink frequently to incease secretion of tears to nourish your eyes. < {P17}> Put the reference document on the bracket next to the computer. Then you needn't turn round your head and neck or adjust the eye focal length frequently.

Glasses are our necessities in the daily life. Some people use it to correct their eyesights, Somebody uses them to protect the eyes. Or as accessories.

We have to choose different rx sunglasses in accordance with different funcitons of glasses.

  • An accurate formula is needed if the glasses is used for correcting defects of vision.
  • While those used to protect eyes require high quality.
  • The glasses as ornaments should be new style.

The request of selecting glasses is also diffferent for different genders.

  • Women prefer gorgeous glasses because they want to look pretty,
  • while men pay close attention to quality.
  • Children mainly use Brille to rectify their eyesight with their focus on the quality of glasses in the course of their eyesight growing.
  • While the elderly mostly choose bifocal or progressive glasses.

Different professions also need different kinds of glasses. For example:

  • The workers doing welding need to wear welding goggles.
  • Pilots need the special glassed for flying.

So as to ensure their safety while working.

No matter what kind of Brillen you need you can find them in Glassesshop.com.