Instruction

Sunglasses , also named sunshade mirror, the use of shading. People in the sunshine will depend on the size of the pupil to adjust the flux, when the light intensity over the human eye adjust ability, will cause damage to the human eye. So in the outdoor activity places, especially in the summer, many people are using the sunshade mirror to keep out sunshine, in order to reduce eyes fatigue caused by adjusing and the stimulation damage cause from the strong light.

Sunglasses plays the role of shading and is also a kind of a eyesight health supplies to prevent damage to the human eyes caused by sunlight intense stimulation . As people raise the level of material culture, sunglasses becomes the sepecial adorn article of beauty and from it can reflecting personal style.

Because the surface of the earth's sunshine contains ultraviolet ray, the human's eye cornea and crystal is the most vulnerable eye tissues cauded by ultraviolet ray, and "cataract" is the the eye disease closely related with eyes. Due to the environmental damage to the depletion of the ozone layer, and the increase of people summer outdoor activities,uv damage can not be neglected by human. Wearing sunglasses is a good way to protect the eye from uv damage, but to pay special attention to the choice of sunglasses.

According to the provisions of the international standard, sunglasses is listed as personal eye protection products category, because people wear sunglasses specially in the summer , the main function is to keep out dazzling sunlight. However, the international standard and sunglasses subdivided into "fashion glasses " and "general purpose glasses. The standard of "fashion glasses " quality demand is low. Because "fashion glasses " main outstanding is style, the wearer attention is adornment, not protecting functions. The standard of "general purpose use mirror," the quality requirements are more severe, including the uv protection, and d and prism degree index requirements.

Basic Functions:

A pair of sunglasses appears to be very simple, also is in a plastic or metal frame has two pieces of glass or plastic covering the color. Andthing is simpler than this? In fact, two pieces of glass lenses can produce a lot of differences, when you use the sunglasses, these differences will also have great impact on you. In this article you will understand the various sunglasses exists between difference. A good sunglasses must have the following four functions:

To prevent the illuminate of ultraviolet ray in sunshine
Ultraviolet ray can damage the cornea and retina, high quality sunglasses can completely eliminate ultraviolet irradiation.
To prevent the illuminate of strong light
When the eyes to receive too much light, it will naturally to shrink the iris. Once the iris shrink to the limit state, then people will need to narrow eyes. If light still too, such as the snow reflected sunlight, will produce damage to the retina. High quality sunglasses can filter to up to 97% of the light in order to avoid damage it.

To prevent the illuminate of glare
Some surface, such as the surface of the water, can reflex a lot of light, and thus produced window would disrupt the sight or hidden objects. The high quality of polarized sunglasses can use technology to completely eliminate such glare.
Eliminate the light of certain frequencies
Some of the frequency of light will fuzzy line of sight, and some other frequency light can enhance contrast. For sunglasses choosing the right color, make it in specific environment better effect.

If sunglasses does not provide ultraviolet protection, it will you more exposure to uv rays. Cheap sunglasses filter to a part of the light, causing your iris open to receive to more light. It would also make more into the ultraviolet ray, and increases the damage caused by ultraviolet radiation to the retina.
Therefore, between various sunglasses really are different. The use of specific environment, choose the right, the high quality sunglasses will provide you with the most protection

Object Classification:

According to using classification,sunglasses can generally be divided into the shading glasses, light color sunglasses and special purpose sunglasses three categories.

The so-called sunshade lens, just as its name implies is to make the use of shading, people in the sunshine will adjust the flux depend on the size of the pupil , when light intensity is strongger than the human eye adjust ability, will cause damage to the human eye. So in the outdoor activity places, especially in the summer, many people are using the shading galsses to keep out sunshine, in order to reduce eyes fatigue caused by adjusing and the stimulation damage cause from the strong light.

Light color sunglasses to block sunshine role is not good as the shading glasses, but for its rich colors,it's suitable for all kinds of dress collocation with use, have very strong adornment effect. Light color sunglasses because of its rich colors, style diversity, gets the young gens 's favor,moreover the fashionable women loves it very much. Special using sunglasses has the very strong fucntion to keep out the sunlight.People often use it for the beach, skiing, climb, golf such as the place has strong sunlight.

Different people, according to the different preferences and different use to select the sunglasses, but the most fundamental is to want from the wearer can guarantee the safety and eyesight not damage on the basic principle. Reduce the glare stimulation, inspect content clearly not deformation, prevent ultraviolet, to the color recognition not distortion, accurate identification traffic signals, should be the basic function of sunglasses. If the function with a defect, light lost the role of sunglasses, heavy then can produce the dizzy, eyes acid bilges, etc to consciously symptoms, and sometimes also can produce slow to respond to contend, inspect content and walking on color illusion inequality symptoms and cause accidents, etc. So choose sunglasses can't focus on design and ignore its inner quality.

Knowlege of Using

Improper wearing sunglasses to get the eye disease, cloudy, indoor light and dark cases it is not necessary to wear sunglasses. Some people not to divide the situation, no matter the light from the sun, strong or weak, even in the twilight, in the evening and watching movies, TV also is wearing sunglasses, this will increase the burden of adjustment eyes, cause eye flesh tension and fatigue, make ision loss, inspect content fuzzy, serious will have lightheaded and other symptoms. For the visual system development still is not perfected baby, children should not be wearing sunglasses. In addition to the glass sunglasses, other sunglasses lens material wear resistance is not high, users often should pay attention to the surface of the sunglasses, when wear influence definition, should change in time.

Maintenance of Sunglasses

Dazzle beautiful sun glasses let you active in the sunshine, good free. In fact the sun glasses can block the sun, can stop pollution damage, so should be care, lest face is not hanged so well.
Maintain the sun glasses measures such as maintenance glasses, cleaning, accept fold, storage will form a habit. But the sun glasses often take off to take off the DaiDai, carelessly will scratch, so has a few little detail to special remind you: the sun glasses with a spot on adhesion, don't use a nail to dig, it would be easy to scratch the surface of the wound.
The sun glasses don't wear, many people will be conveniently hang on her head, and brought or pocket, this time the body movement range don't too big, lest the break or damaged. Or someone will put in the handbag, suggest you or in the first hard eyeglasses box, and then into the bag, so as not to be key, comb, such as copper little wear glasses, or to such as lipstick with cosmetic.
Motorists by wearing sunglasses, don't wear often without extra trouble on the dashboard or seat, and this is a very bad habit, the hot weather will the sun glasses roasted a prototype, especially plastic frame is even more so, had better be to take off, or collections in the glasses placed in the box.
Whether you will the sunglasses museum in where, be sure to remember to the mirror.

The method of Choosing Sunglasses

• To match the face, skin color, working environment, dress
• When wearing sunglasses don't feel dizzy and see objects more clearly
• Effectively prevent ultraviolet ray, equipped with uv380, uv400 and similar orientation marks
• Good sunglasses are supporting the glasses box, lens cloth, tags, etc.

What kind of people is not fit for wearing sunglasses

glaucoma patients.

color blindness patients.

night blindness patients.

optic nerve retinal infection patients.

children.

what's the reason of wearing the sunglasses will feel dizzy

If sunglasses brought up a felt faint, may be the mirror baseboard is too tight, the nasal discomfort "from the site oppressive feeling, or the lens itself QiuMianDu, prism degree of make the wrong parameters. The colorful about lens phenomenon, in principle, has nothing to do with dizzy, but may cause visual effect is not good. Colorful reasons may be lens when the problem or injection process for liquid problem. Normal about our glasses are from China professional manufacturer of high-end glasses, and have a long history of the Taiwan manufacturer. Should control is good, but sometimes has to avoid unhealthy phenomenon. After all is manual work. How much more than 8 bending is also a degree of sunglasses, also can cause dizziness. Added: "most of the Angle adjustable, dizzy also is most likely not qualified sunglasses, should stop to wear.