Our eyes can adapt to different light and dark environments. Prolonged exposure to the fierce sun, or the need for outdoor activities, not only will increase eye fatigue, and more harmful rays entering the eye (especially ultraviolet) will damage the eyes. In this case, wear a good quality --oakley sunglasses cheap-- is the best way to protect the eyes. Guangzhou Institute of Guangdong and Hong Kong Optometry expert Professor He, only a pair of sunglasses is absolutely not enough for health. Different light intensities, the eyes need protection is also very different shades of lenses that is not the same.
When driving, the most suitable to wear brown sunglasses
Tinted lenses can absorb light purple, cyan, can absorb almost 100% of ultraviolet and infrared, can block the smooth and shiny surface reflecting light, wearing glasses can still see the subtle part, is the ideal choice for motorists. So, for car owners, must not be less so a professional driving sunglasses.
When traveling, gray and green is better
The sunglasses lenses designed for travel and is basically a plastic material made from dyed. With lens on the shallow depths. At this point, the lenses of sunglasses should be able to pass through 30% of visible light, gray and green for the best, because these relatively soft colors, will not change color when outside watching the scene, but also resist ultraviolet irradiation to ensure depending on the material clarity, through external objects color changes also minimum.
Outdoor sports, pick a professional --cheap oakleys-- polarized sunglasses
During sea or skiing and other outdoor sports, wearing sunglasses must have the function block the glare, for example, the polarizing coating sunglasses. Lenses be added to the vertical direction in order to filter the dazzling light of the sun shines on the surface of the water, land or snow on the equality direction, special paint, will outside messy emit light, scattered light, water waves filtering into soft straight light, so that they no longer harm your eyes. Professional polarized sunglasses for outdoor sports such as maritime activities, skiing or fishing, but the general daily life, especially in the car, do not apply to it, and it will let you see clearly.
Fit with 35% depth of sunglasses in the sun
Sunglasses color is divided into four kinds according to the depth, respectively, is 15%, 35%, 50% and 70%. The most shallow depth of 15%, suitable for indoor wear, especially for eye prescription, can avoid the trouble of remove and put on; 35% of the depth, suitable for use in outdoor sunlight; 50% depth of sunglasses, available in under the hot sun or beach wear; 70% depth of sunglasses is not commonly used in daily life, and are generally used by welders and other professionals.
Summer wearing a "mirror" notified
Dark green --cheap oakleys-- lens: absorb light at the same time, maximize the green light to reach the eye, it is very cool and comfortable feeling, eye fatigue for people to use. But because of its light transmission and clarity for sun wear should not wear while driving.
Grey lenses: of any chromatography balanced absorption, so watch the scene will darken but there will be no obvious color to show the real and natural feel.
Tinted lenses: the absorption of light purple, cyan, and can absorb almost 100% of ultraviolet and infrared, can block the smooth and shiny surface reflecting light, wearing glasses can still see the subtle part, is the ideal choice for motorists.
Blue lens sunglasses: the most popular color, can effectively filter out the light blue of the sea and sky reflection, wear suitable at the beach.
Mercury lens: the lens surface using high-density mirror coating. This lens more absorption and reflection of visible light, suitable for outdoor sports people.
Yellow lenses: Strictly speaking, these lenses are not sunglasses, because it almost does not reduce visible light, but in the foggy and dusk, yellow lenses improve contrast, provides a more accurate video, it is also known as night-vision goggles . Hunting, shooting, wearing yellow lenses --cheap oakley sunglasses-- when the filter is very common.
Light blue, pale pink lenses: decorative than practical lens
Our eyes can adapt to different light and dark environments. Prolonged exposure to the fierce sun, or the need for outdoor activities, not only will increase eye fatigue, and more harmful rays entering the eye (especially ultraviolet) will damage the eyes. In this case, wear a good quality --oakley sunglasses cheap-- is the best way to protect the eyes. Guangzhou Institute of Guangdong and Hong Kong Optometry expert Professor He, only a pair of sunglasses is absolutely not enough for health. Different light intensities, the eyes need protection is also very different shades of lenses that is not the same.
When driving, the most suitable to wear brown sunglasses
Tinted lenses can absorb light purple, cyan, can absorb almost 100% of ultraviolet and infrared, can block the smooth and shiny surface reflecting light, wearing glasses can still see the subtle part, is the ideal choice for motorists. So, for car owners, must not be less so a professional driving sunglasses.
When traveling, gray and green is better
The sunglasses lenses designed for travel and is basically a plastic material made from dyed. With lens on the shallow depths. At this point, the lenses of sunglasses should be able to pass through 30% of visible light, gray and green for the best, because these relatively soft colors, will not change color when outside watching the scene, but also resist ultraviolet irradiation to ensure depending on the material clarity, through external objects color changes also minimum.
Outdoor sports, pick a professional --cheap oakleys-- polarized sunglasses
During sea or skiing and other outdoor sports, wearing sunglasses must have the function block the glare, for example, the polarizing coating sunglasses. Lenses be added to the vertical direction in order to filter the dazzling light of the sun shines on the surface of the water, land or snow on the equality direction, special paint, will outside messy emit light, scattered light, water waves filtering into soft straight light, so that they no longer harm your eyes. Professional polarized sunglasses for outdoor sports such as maritime activities, skiing or fishing, but the general daily life, especially in the car, do not apply to it, and it will let you see clearly.
Fit with 35% depth of sunglasses in the sun
Sunglasses color is divided into four kinds according to the depth, respectively, is 15%, 35%, 50% and 70%. The most shallow depth of 15%, suitable for indoor wear, especially for eye prescription, can avoid the trouble of remove and put on; 35% of the depth, suitable for use in outdoor sunlight; 50% depth of sunglasses, available in under the hot sun or beach wear; 70% depth of sunglasses is not commonly used in daily life, and are generally used by welders and other professionals.
Summer wearing a "mirror" notified
Dark green --cheap oakleys-- lens: absorb light at the same time, maximize the green light to reach the eye, it is very cool and comfortable feeling, eye fatigue for people to use. But because of its light transmission and clarity for sun wear should not wear while driving.
Grey lenses: of any chromatography balanced absorption, so watch the scene will darken but there will be no obvious color to show the real and natural feel.
Tinted lenses: the absorption of light purple, cyan, and can absorb almost 100% of ultraviolet and infrared, can block the smooth and shiny surface reflecting light, wearing glasses can still see the subtle part, is the ideal choice for motorists.
Blue lens sunglasses: the most popular color, can effectively filter out the light blue of the sea and sky reflection, wear suitable at the beach.
Mercury lens: the lens surface using high-density mirror coating. This lens more absorption and reflection of visible light, suitable for outdoor sports people.
Yellow lenses: Strictly speaking, these lenses are not sunglasses, because it almost does not reduce visible light, but in the foggy and dusk, yellow lenses improve contrast, provides a more accurate video, it is also known as night-vision goggles . Hunting, shooting, wearing yellow lenses --cheap oakley sunglasses-- when the filter is very common.
Light blue, pale pink lenses: decorative than practical lens

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However, these colorful the color sunglasses will damage your eyes? The effects of UV protection, sunglasses color has nothing to do with the lens material, lens color play only to improve the role of the visual effects. Sunglass lens color of the light reaction varying degrees, outdoor activities sunglasses need to pick a suitable color.
Daily use:
Positive gray dark gray lenses do not change the original color of the scene, and the effective protection of the glare on the eye injury.
The gray-green-gray-green lenses will not change the color of the original scene, effectively protect the eyes, mild natural color is more applicable to everyday life.
Driving:
The coffee the Chacha color --ray ban wayfarer-- lenses can absorb most of the light, the eyes do not fatigue, is the ideal choice for driving the crowd, most suitable for Asians wear.
The amber amber lenses can absorb the majority of the light, so that the eyes do not fatigue, more translucent and clear vision, is the ideal choice for driving the crowd.
Golf:
Dark green golf glasses color, green space clearer, the white ball more prominent. But should not be used while driving.
Water sports:
Navy blue to ensure that despite living in long-term sleep glare environment, glasses can effectively protect the eyes from glare stimulus.
All kinds of sports:
Gold orange orange -- oakley sunglasses cheap-- lenses fit to participate in a variety of snow sports, running, worn while biking rapid movement.
The driver is not fit to wear the red, yellow, green, and blue colored glasses, as this may cause an error distinguish road signs, traffic lights and dashboard.
The color sunglasses applicable crowd
Children less wearing sunglasses, visual function and development of the children do not reach adult levels, and need more bright light and clear was like the stimulus, children's sunglasses filter function, reduce the intensity of the light, but also to some extent reduce the field of vision clarity.
For patients with myopia laser surgery done, also pay attention to the choice of sunglasses. Recommended lens size as large as possible, comply with the physiology of the human eye color in the color selection is better. Species selection recommended to choose --cheap oakleys-- polarized lenses, because it can eliminate glare and reflected light, and then a choice suitable filter lenses.

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Spring fashion people go out will wear --oakley sunglasses cheap-- , first, to prevent the sun UV damage to the eyes, on the other hand is a modified, more stylish.
Harmful rays emitted by the sun will burn our eyes, or the senile cataract culprit, at this time we need a qualified sunglasses block these harmful rays for us. The vast majority of sunglasses on the market, how to identify the function of a variety of sunglasses and the pros and cons of it?
Choose sunglasses, the most fundamental is to be able to protect the wearer's safety and visual damage. Reduce the light stimulation; visual clarity without distortion, anti-UV, no distortion of color recognition, accurate identification of the traffic signal should be the basic function of sunglasses. Selection of sunglasses, pick colors and materials is very important. Choose sunglasses, not only to pay attention to its decorative, but also pay attention to the protection of its eyes.
According to reports, the sunglasses mainly depends on the type of lenses, the market is broadly divided into four kinds, color lenses, lenses, polarized lenses and photochromic lenses coloring.
Colored lenses, also known as "stained lens is the lens production process, coupled with some chemicals, so the lens showing the color, for the absorption of a specific wavelength of light. This is the most commonly used type of lens of --cheap oakleys-- sunglasses.
Coloring lens effect with colored lenses, this lens is presented only be made in different ways, it is the color applied to the surface of the lens, the most well-known is the "gradient-coloring lenses, color is above the deepest , then down gradually shallow. There are degrees of sun glasses coloring treatment lenses.
Polarized lenses, in order to filter the dazzling light of the sun shines on the surface of the water, land or snow on the equality direction, adding vertical to the special coating on the lenses, called polarized lenses. Most suitable for outdoor sports.
Photochromic lenses, it was also known as "photosensitive lenses. Because adding the right amount of chemicals in the lens, so that the original transparent colorless lenses, encounter strong light, strong ultraviolet radiation, becomes colored lenses, mainly used the protective UV on the eye burns, and --ray ban wayfarer-- is suitable for indoor and outdoor used simultaneously, in particular at high altitudes the strong ultraviolet region.
Sunglasses, a current standard does not necessarily have the additional UV protection or impact protection performance. Only when expressly performance products, will be the assessment of these indicators. Anti-ultraviolet function identification, ultraviolet sun light wavelengths between 200nm ~ 380nm, including three categories: UVA band 315nm ~~ 380nm the UVB band 280nm ~~ 315nm the UVC band of 200 nm to 280 nm. The sun's rays reach the earth's surface (290nm ~ 2000nm) in ultraviolet accounted for about 13%, which accounted for 97% of UVA UVB accounted for 3% UVC close to 0.
The ultraviolet is mainly determined by the degree of damage to the human eye in the wavelength of the UV radiation time and radiation intensity as well as the strength of the human eye's own defense mechanism, cornea, and lens by UV damage eye tissue is the most common.
In order to protect the health of the eyes, choose sunglasses with UV protection, as much as possible to eliminate the ultraviolet rays of 380nm or less. Generally marked on the glasses uv400 or 100% uv refers glasses with UV protection.
Identification of safety performance, safety performance sunglasses lens impact material such as pc tablets, there are special requirements for safety performance for motorcycle riders, drivers and other consumers is a good choice.
To learn how to protect yourself, buy --ray ban outlet-- should obtain a copy of the complete packaging and save these is the commitment of the manufacturer, the product performance.