Sunglasses, simple accessories mode or protection against glare? No! The sunglasses are designed to filter UV harmful to your eyes. If you do not properly protect you, you may burn the eyelids or the cornea, you are harming your eyes or ruin you the view. The harmful effects of UV are pernicious because they do not necessarily feel and can be measured in the long term.
Wrong choice makes it worse
Beware of counterfeits. The material used can pass UV, even if the glasses are tinted. Tinted glasses which do not filter UV rays do any protect your eyes. On the contrary! When there is sunlight, the pupil is more dilated than in daylight because of the darkening caused by the tinted lenses. Then, the UV rays directly reach the retina. Therefore, it is bad for the health of bad glasses of not wearing at all in a sunny environment. To ensure the quality of your glasses, it is best to go to an optician.
Choose the best protection against UV rays
The UV of the EC standard distributes sunglasses into 5 categories, from grades 0 to 4 depending on the percentage of filtered rays (class 4 using the goggles for intense sun light, with more than 90% filtration).
Make sure that class and the intensity of color of your lenses are suitable of sunshine, your activity level, and in the middle. For example, class 4 lenses let in less light and therefore they are more dangerous for driving. Also remember that glasses can be adapted to certain conditions, for example sunglasses for skiing.
If it is UV – 400 on the glasses, you ensure that your sunglasses will hide the harmful rays. Indeed, the mention UV400 guarantees that 100% of the ultraviolet rays are filtered (UVA, UVB and UVC). On the other hand, sunglasses with CE mark guarantee compliance with European regulations.
Attention! If you wear contacts, wearing sunglasses is still necessary to protect the eyes according to SunglassesTracker.com.
Choose the right glass color
Color glasses depends on the situation and possibly a refractive defect. It is advisable to short-sighted to choose glasses Brown and green glasses to the hypermetropia. For gray, it is suitable for everyone, because he respects the color vision. Yellow gives him a good perception of the depths and accentuates the contrasts.
- Gray lenses: faithful rendition of colors, recommended for driving.
- Brown glasses: warm up and improve contrasts (they are best for short-sighted). Good protection in all circumstances.
- Glasses of Green: better protect against glare.
- Yellow or orange lenses: increase the visibility of the contrasts by fog or low light time.
- Blue or purple glasses: provide protection when the Sun is moderate.
- Pink or red glasses: shown only in low light.
Choose a proper treatment of glasses
You can treat your glasses on the surface:
- The anti-glare treatment: great for driving because it decreases the reflection of the rays to the eyes. It is usually done on the inside. There’s no need to do it on the outside because the purpose of sunglasses is to reduce the entry of light.
- The mirror treatment: particularly suitable for the mountain because it reduces the reverberation and glare.
- The anti-scratch treatment: indicated for sports or travel because it is resistant to friction and of course scratch.
Choose a wide enough frame
Your mount must be large enough to protect the eyes. It is important to wrap as the eyelids and the sides. For optimal protection, prefer large branches or of curved forms. So, you make sure the shelves on the sides and above but also below in case of strong reverb, frequent in the mountains and the sea, do not pass.
Sunglasses for children
The children’s eyes are more sensitive to light than those of adults. This is why it is recommended to parents to double vigilance when buying glasses for their children and to encourage them to wear them as soon as the Sun is the tip of his nose. Even under an umbrella, don’t let them remove their glasses, sand reflects 10% of light.
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