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 When you go
shopping at the large flea market you are tempted to buy the sunglasses which
are presented in a huge variety there. Or a pair of them. The more you want, the cheaper they come.
Though, all these models are sun glasses with dark lenses but nothing more. The
point is that you look for authentic functional sunglasses which protect eyes
from stress and round-eye – from ageing, but not the simple accessory.
Today a
range of sunglasses is offered and the choice is hard to make. Good sunglasses
are not cheap but they worth money you spend for them. Such expensive sunglasses
protect eyes from direct sun rays which force us squint. The degree of
protection from light matters here which is perceived by eyes, though UV light
is not seen and perceived but it is too dangerous for eyes and skin also. And
when you make sure that your eyes are protected, you may consider the
decorative element of sunglasses.
First,
specify the purpose you need sunglasses for. We know that the main purpose is
eye protection, though sunglasses should protect eyes differently in urban
conditions and in the snowy area in Kilimanjaro. If you go to rest to the ski
resort or the sea, you will find the watery surface with bleaks from water or
you always drive your car by yourself, and in this case you will need polarized
sunglasses. The lenses of sunglasses absorb the bright sun glares which are
typical in the above conditions and your eyes will stay comfortable.
For the hot
summer time seek for sunglasses with the high level of protection. Remember
that dark sunglasses, meaning with darkened lenses, is not the cure from
sunbeams and that UV light. The lenses should absorb sunbeam and UV light
through the special filter. When you have sunglasses with fairly dark lenses
but without UV protection, your eyes endure additional stress. You do not squint; the pupil of your eye is not
coarcted since the sunlight does not get in there, though the UV dose is
absorbed by the eye pupil. Such glasses will cause particular problems with
vision and aged sin in the nearest future.
The quality
sunglasses have the level of protection on them. You may read about the percentage
of ultraviolet rays’ exposition and the type of UV absorbed by lenses. B rays
are believed to be more dangerous foe eyes, thus choose sunglasses that provide
maximum absorption of UVB.
The color
of sunglasses is the other significant factor. Dark sunglasses may appear dull
to you today, though doctors do not recommend color sunglasses for everyday
use. That’s fine, such sunglasses show the life in the gaudy colors, though it
is of no good for your crystalline lens. The blue gamut is the most
unfavorable. The most optimum choice is grey or dark-green lenses which do not pervert
the color. In case if you cannot do without bright colors, get a frame of
whatever color with dark lenses.
The
material sunglasses are made from can make your searches difficult or
easy, on
the other side. We know that the ordinary glass lets А-type rays
completely absorbing В-rays. When you buy sunglasses with glass
lenses, you ensure the particular protection without special filters.
Plastic lenses absolutely absorb the UV light, tough it is comfortable
and thus, popular. There are rare people who are willing to wear heavy
sunglasses and once you prefer plastic lenses, be careful and specify
the protection
level the manufacturer provides.
The shape
of sunglasses is the matter of comfort and beauty. If you get narrow
sunglasses, the round-eye skin will get exposed to sun rays. Too big sunglasses
are trendy today and they create the barrier between eyes and round-eye skin
and aggressive sun rays.
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