But do you know who the person who first introduced the glasses? He is George Airy, namely a British astronomer who first wore the glass lenses in the year 1827 as a proofreader views.
Before the year is already starting glasses found in various forms, such as clipped to the bridge of his nose, his glasses one receiver, which was tied in the head and so forth, while hooked to the ear glasses (spectacles) was discovered in 1727 by Edward Scarlett.
The whole world is now familiar with spectacles, including Indonesia, Indonesia's tropical climate conditions allow time for the sun for more supply. Now it is no longer strange to see pedestrians using sun glasses, sun glasses when the previous user is identical to motorists or tourists, tourist location.
However, before you decide to follow this lifestyle, then you should see the following reviews of three important things with the glasses.
The model range also opens opportunities for fans of sun glasses to add to his collection of cheap start up a fancy and expensive. Any model you choose should remember the following few basic things:
1. Health
Select and use glasses that can provide health protection, especially for a pair of your valuable eyeballs.
2. Security
Able to provide comfort while driving, especially in the daytime, in order to avoid traffic accidents due to reflection-reflection glare from other vehicles. Also do not forget to put on a model that does not bother you own and not very narrow view.
3. Appearance and Usefulness
Several types of glasses are designed to be worn by athletes, such as beach volleyball or skiing olahaga ice. A pair of Oakley sunglasses of course suitable for those who indulge in the outer space and move actively, but not necessarily appropriate and elegant for those behind the wheel of the sedan. Add to the collection is fun, and a new pair of glasses is no exception. Cheap is not necessarily good quality, so depending on which one you want, whether simply shade the eyes or eye protection?
Benefits Glasses
It was identical sun glasses with black or dark brown. But now along with the development of fashion, there's enough range of colors that are offered for a pair of sun glasses, who had just called sunglasses. When you're driving or when the sun was so hot, this one certainly equipment to support your convenience.
A pair of sun glasses will provide shade for your eyes. But make no mistake to select a good pair of sunglasses is not easy, not even cheap. Of course no different pair of glasses worth USD 10 000. Specs for both to counteract the sting of the sun dazzled him should have the ability to protect your eyes from:
1. Ultraviolet, which can damage the cornea and retina of the eye. Good sunglasses better if able to counteract the overall risk in order to avoid the eyes of early blindness.
2. Bright light which, when exposed to excess part of the eye can damage the retina, for example the reflection of the sun on the car body. Good sunglasses should be able to hold 97 percent of the light.
3. Sheen, like the reflection of sunlight on the water surface. Usually either have polarized glasses in order to advance mengilangkan sparkle effect that can interfere with vision.
4. Frequency of Light, which in certain circumstances make the scenery is blurred. On some models of the sun glasses, there are several alternatives that could reduce the color of this light.
Some research mengingkatkan ultraviolet radiation (UV) can cause cataracts and eye function such setbacks suffered by the elderly. Well, wearing sunglasses is the easiest way to protect your eyes from dangerous solar radiation. No need expensive when buying a pair of sunglasses, look at the types that match your needs:
For everyday use, try colored lenses "light" that can block 70 percent UVB, 20 percent of UVA and 60 percent of incoming light. These glasses are classified into types of cosmetic glasses.
For the purposes of outdoor recreation such as tours, a walk in the park, window shopping, select the lens is being colored glasses and a little dark. Glasses of this type can be prevented 95 percent of UV B, 60 percent and 60-90 percent of UV A light. Glass eye glass types are grouped into the normal eye. Most of the glasses who fall into this category.
For very bright conditions, when you spend the holiday by going to the beach, enjoy the sunset, playing Watersport (sports recreational beaches), choose a very dark-colored sunglasses, with UV barrier. In these glasses should be written labels can be prevented 99 percent of UV B, 60 percent and 97 percent of UV A light. Glasses of this type are grouped into types of glasses with special needs.
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