2010年2月28日星期日

The Practical Tips In Picking Sunglasses

Sunglasses have become necessities for fashion followers. They will buy various kinds of sunglasses crazily. What's the matter that should pay attention on the eyeglasses perchasing to protect our eyes?

Do not buy acrylic lens, which is easy to heat and deform, it is best to choose glass or resin material. The sunglasses should be comfortably put on the bridge of the nose and ears. If you feel the two sides are not lopsidedness, you should timely adjust. In addition, the "eyelashes can't reach the lens" is also one of the yardsticks.

Do not select too narrow lenses, which will have a worse effect on prevent the light. Observe whether there are scratches, impurities, bubbles and stripes, Check the overwrap of the cheap glasses. Normal ones should be marked the name, colour,diameter, quality level, the name of the company and the trademark. The lens or brand that marked with the symbol of UVA, UVB or CE are sure to prevent a centain quantity of ultraviolet radiation.

The lenses should be smooth and have a higher degree of penetration. The sunglasses material should better be glass and resin film, and the best sunglasses lens should use the polarized lens. Choosing the colors of sun glasses according to your own skin color, the shape of face, and the costumes as well as the place you are going to .

In general, black, brown, gray lens has a good effect of filtering light. The gray lenses can absorb any chromatographic balanced. The scene you see after wearing glasses will only become dimming, but will not have an obvious color difference. Glasses in tea colors can filter the blue lights out a lot. It can improve the setup and clearness of sights. It has the best effect in the condition of heavy air pollutions and foggy weather.

Wear sports-type sunglasses during aquatic activities at the beach, in the strongly lightreflecting snowfield or in the strong sunshine. Most of them adopt flashy and bright saturation colours which can absorb or reflect more visible light.

In addition, wearing eyeglass frames is to reduce glare stimulation to make the eyes be comfortable, the main purpose is to prevent ultraviolet damage to the eyes. The color of the glass have nothing to do with the ultraviolet proventing. Even they are in dark colors, they wouldn't provent UV effectively. So you should make sure to select lenses labeled with anti-UV function. In general, UV index sunglasses is between 96% -98%

The Correct Ways To Pick Mirror Holder For Your Children

If you need eyewear, then to choose a pair of qualified glasses frames is very critical. It is particularly true to children. In particular, the young children will not complain. If the glasses are inappropriate to the young children, parents often mistakenly believe that the naughty children do not love wearing glasses. In fact, the improper glass is in disadvantage of children' eyes and could urge the children to get the mood of hating for wearing the glasses. The following factors should be considered when choosing glasses for children.

The frame for kid glasses should be light. In generally, the appropriate weight of children glasses should between 13 gram and 19 gram. Children's head is very different from that of adults, there, in particular, being apparent difference in the angle and degree of curvature between children's and adults' nose. Therefore, watch carefully of the face and the nose of the children when choosing the frames. Most of children' nose bridges are comparatively low, and the nasal bone is not mature, so the spectacle frame should has a high nose pad, or the frame with adjustable nose pad. Otherwise, the optical frame, after the glasses are put on, will press again face and even come into contact with lash. Glasses like this are just unusable. The children's glasses frame should best be the style of hanging ears, and using elastic belt to tie around the around the back of the head. The belt should not be tied too loose, so as to avoid the glasses slipping from the child's head.

Children's bifocals frame are rich in styles and colors, children pay much attention to spectacle frames their pursuit of beauty is no less than adults. However, parents should choose glasses from children from the reality. Most children are very naughty. It happens often to injure eyes because of the lenses breaking. So resin lens and plastic frame will be the best. And it is decent if the frame can keep close to nose. In addation, it’s economical to choose plastic frame for children from an ecnomic perspective because children’s eye dioptre changes quikly and they need new lens in about a year.

Metallic frame isn’t fit children that’s because the bracket of metallic frame will cause allergy to children and press their nasal bone. If the nose pad of metal frames is not adjusted accurately, the phenomenon of oppressing nasal bone will be severer. Besides, metallic frame distorts and brokes easily that will damage its out appearance and the useage. But plastic frame can not be broken easily which is the wise choice for kids' frame. If children like metal frames, it is best for them not to use perforated frames and semi-frames, because these two kinds of spectacle frames are easier to damage.

There should be enough sight range for children reading glasses because children take part in activities in wide range area. Try not to choose those frames which containing shadows and dead points in sight. And avoid the frames which are too big or with too long hangers.

2010年2月21日星期日

Polarized driving Eyewear the Top Choice for Drivers

For people driving, safety is the most important. For people driving, safety is the most important. However, lots of them take ordinary eyeglasses as their driving glasses but this cannot meet the requirements for safe driving and meanwhile will cause enormous potential safety hazard.
polarized driving glasses can do it for drivers. Drivers can not only enjoy an improved vision and a wider & clearer view, but also get rid of glare and eye prostration by using polarized driving glasses. Then the neighboring scenes look soft but noy dazzling. Drivers' judgment will be hindered by glaring light and blasts of hot air from the red-hot roadway when driving at daytime. It can block the sun glare and harmful ultraviolet rays, it is the effective protection of the eyes. The gloomy surroundings and the high-light throw out by cars coming from opposite direction are really potential dangers to drivers while driving at nights. Polarized driving glasses can not only ward off highlight from the opposite cars, but also increase the roads’ luminousness.
Apart from driving, polarizing glasses can be used in other ways:
Eliminating the glistening light from ripples to make the fishing rod visible to anglers when they are fishing;
People also use polarized prescription eyeglasses when ski in the wide open snow to get rid of the reflecting lights and the ultraviolet radiations.
With the excellent quality of holding up residual lights out of the corner of eye, polarized goggles will bring you safer activities.
Holiday can be much more exciting when wearing a pair of polarized glasses, the less ultraviolet radiations, the more fun and happy.
Only one pair of polarizing eyewear can serve many purposes of driving, fishing, outdoor workout, traveling and so on. Why not buy one?