This great info on sunglasses written by Mel who writes on gucci and more.
Sunglasses have darkly tinted lenses to protect the eye from over-exposure to bright light or sunlight. It is necessary to wear sunglasses that comply with Australian Standards 1067 to get the correct eye protection.
There are three different standards from 0 to 4, with 4 offering the best protection and 0 offering none. Expensive sunglasses are not necessarily the best for eye protection. Very often cheaper ones are better - it all depends on that little number. They are particularly useful on the beach or snowfields where the sunlight is reflected by the light-coloured surroundings. Snow blindness can result when skiers or others out on the snow on a sunny day do not wear sunglasses.
Sunglasses came into being during the early 1900s when film stars were filming in the brightly powerful arc lights used on sets. Then after ultraviolet filters were used on the lights, wearing sunnies was still fashionable. They also helped to give famous stars some measure of privacy.
Wearing sunglasses can protect the eyes from more than snow blindness. When eyes are exposed to too much ultraviolet light, cataracts, photo keratitis, pterygium and cancer of the eye can result. It has also been implicated as a cause of macular degeneration.
It is necessary to wear sunglasses that comply with Australian Standards 1067 to get the correct eye protection. Wearing sunglasses can protect the eyes from more than snow blindness. When eyes are exposed to too much ultraviolet light, cataracts, photo keratitis, pterygium and cancer of the eye can result. It has also been implicated as a cause of macular degeneration.
There are three different standards from 0 to 4, with 4 offering the best protection and 0 offering none. Expensive sunglasses are not necessarily the best for eye protection. Very often cheaper ones are better - it all depends on that little number.
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