Today, more and more myopic crowd, so many people had to go with a pair of glasses to solve vision problems; optional lens Cheap Mac Cosmetics Makeup wholesale Outlet glasses that cannot be missed, Essilor, Hoya, the Soviet Union took and Zeiss, because most of the lens material becomes high preferred glasses family. But filled with cottage, counterfeiting and other products often found not new and was beloved glasses Essilor lenses are inevitable. Beware of fake glasses buy glasses; following practices on

You can identify the lens of authenticity.

A: Look lens film color. By looking at the color of the reflective film of the lens is determined. The vast majority of brand Fake Oakleys Gascan Sunglasses Cheap for Sale lenses green film, in addition to blue and purple and so on film; film lens color is rather special, for a touch of yellow-green, relatively few other brands on the market this color.

Two: the lens fog was observed in addition to 1.74 marks Essilor lenses, all of Essilor II or diamond crystal diamond crystal lens cleaning Chile has "CRIZAL" the diamond crystal mark, you simply facing a lens Ha tone will be revealed, but if the size of the mirror is very small circle have been worn or partially processed cutting edge may be worn (low probability), then you need to distinguish between the outside of the packaging.

As if to distinguish between "diamond crystal II" and "Diamond Crystal Chi Kit" You can put the lens into the water washing, clean the lens on the basic wisdom not wet, wet part will show the security word mark "CRIZAL", while the diamond crystal II or other brand Tiffany and Co Necklace Jewelry Outlet Store lenses do not have this effect.

PC resin lens and lens which is better? Tiffany and Co Necklace Jewelry Outlet Store Glasses when we encounter salespeople always asked the question, "What kind of material do you want to select the lens; our side resin lens and PC lens sell better" glasses when we are not encounter to this question then, what is the resin lenses, what is the PC lenses do, they are any different, LOHO glasses senior living optometrist to introduce you to a resin lens and PC lens which is good.

Resin lens:

Resins are derived from a variety of plants, particularly conifers hydrocarbons (hydrocarbons) class secretions. Because of its special chemical structure and can make use of this paint and glue are valued. It is a mixture of several polymer compounds with different melting points so. Resin can be divided into two natural resins and synthetic resins. Resin types are very, very much, is widely used in light industry and heavy industry among people in everyday life among often be seen, such as plastics, resins glasses, paint. Resin lenses is to use chemical processing synthetic resin lens material after grinding

Pros: resin lens is composed of two fatty alcohol glycol and propylene polymerization reaction. Light weight, impact resistance, high temperature, light transmittance Cheap Mac Cosmetics Makeup wholesale Outlet is good, close to the glass lens performance, can block ultraviolet rays.

Disadvantages: the surface abrasion resistance, chemical resistance than glass is poor, the surface is easy to scratch, a large water absorption than the glass; high coefficient of thermal expansion, poor thermal conductivity, low softening temperature, easily deformed and affect the optical properties.

PC lenses:

General resin lenses are thermoset materials, namely raw material for the liquid to form a solid lens after heating. PC piece called "space film", "cosmic piece."

Advantages: light, lighter than traditional glass 57%, security, its impact resistance is 60 times that of glass, do bulletproof Fake Oakleys Gascan Sunglasses Cheap for Sale glass thickness 2.5cm. Thin, with a refractive index of 1.6 is equal to CR-39 lens thickness

Disadvantages: poor wear resistance

Now more and more joined the ranks of the precious metal Tiffany and Co Necklace Jewelry Outlet Store wedding ring material, you can distinguish between platinum and palladium it? What white K gold is? Read through this wedding ring material guide, you may be able to more clearly know what they want the wedding ring material, in order to find the most appropriate ring.

Platinum

Commonly known as platinum, a rare natural white metal, is famous for its strong and pure.

Reason that people loved: Platinum high-density gives it unusually strong, which means that it can properly protect and secure the diamonds or other precious stones. And it is natural Harmonie, worn on sensitive skin without any problems. When platinum was scratched when (all metals will be scratched), it just produces metal displacement, not the loss of quality. So your ring can resist years of erosion. In addition, because it is a pure white metal, so it does not give the central projection on any color gem.

Gold / white K gold

Gold: These natural yellow metals usually kneaded with various metals in order to obtain additional hardness - it usually has a purity of 70-75%. So inlay on it will present a iridescent Fake Oakleys Gascan Sunglasses Cheap for Sale gems, including white, green and pink.

K White Gold: Gold plated layer of rhodium on, let it become white, but as time goes by, the coating may be worn away, it also exposed the original color.

By reason people love: it is a more common metal, so compared to some other metals, it is cheaper. And it can be incorporated into different alloy, which means it can decide according to their own preferences tone.

Rose Gold

This pink tone metal is an alloy of gold and copper blend. Adding more copper alloy that rose more full-bodied tone.

Reason that people love: Why do people particularly fond of rose gold, one of the reasons is its potential significance. White K gold on behalf of friendship, gold represents loyalty, and rose gold on behalf of love. In addition, it is very strong, and Cheap Mac Cosmetics Makeup wholesale Outlet with a variety of different colors are very nice.

Today, wearing large-framed Tiffany and Co Necklace Jewelry Outlet Store glasses also become a fashion in younger age groups: because it is a good modification "pie face."

But in the clinic because there are more and more people wearing large-framed glasses, appeared significantly decreased visual acuity, field of vision smaller, dizzy, and even cases of vertigo. Wearing large framed glasses have many side effects: nose deformation retraction, affect the development of the nasal cavity and nasal ventilation, induced rhinitis; visual impairment, vision continued to decline, the greater the higher the degree of side effects.

Trendy big box mirror too often due to lens, so the lens of the "IPD" probably a little bigger. Some smaller when IPD patients with large frame mirror, on the problem of excessive error IPD particularly prone.

There may be equal to the large-framed glasses wearing "prism"

If you wear glasses IPD wrong, what kind of consequences? That is equivalent to the one in front of the eye frame prism. Will produce the phenomenon of light refraction, the wearer to see things prone to ghosting. Long wear may dizziness, insomnia.

1 large box lens wear more deeper degree?
High myopia does not take, not all big box myopia will lead to vision problems.

Currently the regular hospital and optical shop using more advanced milling machine has a large frame mirror as long as IPD correct, but also can wear. Consumers barely wear small IPD does not match the big-framed glasses, or small shops making unqualified error too large framed glasses will go wrong.

Wearing large Cheap Mac Cosmetics Makeup wholesale Outlet frame mirror clinically discomfort mainly in blurred vision, dizziness and other symptoms, decreased vision inverted much. But if patients with high myopia, if not unqualified to wear large frame mirror, the impact on health is indeed larger than the average person.

2 large boxes mirror so deformed nose induced rhinitis?

Generally, adult nasal development has been completed, the nasal bone can afford a certain weight. In simple terms, large-framed glasses, although a lot heavier than ordinary glasses, but to make the nose deformation, and even affect the nasal ventilation, still not.

As induced rhinitis, and no talking. Adults wearing heavy big-framed glasses, the impact on the nose is mainly uncomfortable, but also the development of young nose yet fully developed, relatively fragile bones are not yet finalized, the impact will be relatively large, it is best not to wear. Nasal trauma, and do not wear.

Some young people are not myopic, for a pair of big box shelves poser mirrors, lenses are available and some plain, some simply do not have even the lens. This has no effect on the eye it? The doctor said, plain Fake Oakleys Gascan Sunglasses Cheap for Sale glass spectacles although no degree, but it is on the eyes, after all, is a "barrier", if the lens stained with dirt, or have some impact on vision. Amy's friends can only wear a stylish frame Falls.

Strong sunlight in the summer, many people are wearing Fake Oakleys Gascan Sunglasses Cheap for Sale sunglasses. Anti-reflective protective lenses, color lenses, color lenses, polarized lenses, color lenses ... ... Colorful sunglasses on the market, some people tend to buy their favorite color and style, completely ignored the sunglasses the UV effect.

What kinds of lenses can suntan without hurting glasses? In response, Beijing Tongren hospital optometry professional optometrists Lv Meng warned that sunglasses do not prevent Sun, may hurt the eyes. conspicuous when it encounters a glare and UV rays without shelter, the light will go directly to the pupil, thus cause damage to eyes. Sunglasses in different ways (such as polarization, color, coating, etc) play the role of UV. Sunglasses can block UV rays and glare, because of added a special coating on the lenses.

Lv Meng warned that buying sunglasses must go to a regular Tiffany and Co Necklace Jewelry Outlet Store store. At the time of purchase, to look for the package "100% UV" and "uv400", "ultraviolet" logo.

While the color of the lenses mentioned, United States experts in blindness prevention Union recommended that, in General, summer Brown, and Tan is a better choice of lenses, and the more strong outdoor sunlight, should choose the dark sunglasses. Partly because of these colors better lens glare, UV absorption and filtration; on the other, is a Brown lens provides good color perception, wear can still distinguish colors clearly, tinted lenses can block the surface of smooth and shining Ray, under the glare of the Sun to be able to see the object details, driver's tinted glasses is a better choice. And green glasses have sold well in the market, can reduce the level of visible light enters the eye, especially dark green, can absorb heat. While blue, pale yellow and pink lenses are not suitable for wear in bright white light, because Cheap Mac Cosmetics Makeup wholesale Outlet anti-reflective effect was weak.