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Designer Sunglasses


Photo Courtesy of guilty obsession.com

 
Protection
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Before you buy a pair of sunglasses, it is very important to make sure that your new glasses have good UV protection. Many eye care professionals believe that exposure to sunlight can contribute to cataracts and other eye disorders, so be sure to check the labels on your sunglasses. If you are unsure of the UV rating, ask your optician to recommend brands with good UV protection. 


The latest look for Summer 2007
- is that 1980's Retro look as discussed on GMTV this week. All The latest sunglasses can be found on Exclusive Brands Website at fabulously reduced prices. Exclusive Brands is  now having their summer sale, click on the link above.
If you have any comments about sunglasses you would like to share, please email enq@buybeforeyoufly.com and I will publish them.


Useful information about Sunglasses

Sunglasses may be made with either prescription or non-prescription lenses that are darkened to provide protection against bright visible light. Good sunglasses should also protect against ultraviolet light. Because of changes in the atmosphere, ultraviolet levels are much higher than in the past and ultraviolet protection for eyes and skin is even more important. It is possible to have lenses that look very dark and yet offer little ultraviolet protection. Sunglasses vary greatly and many offer more style than protection.

Glasses with photosensitive lenses, called photochromic lenses, become darker in the presence of UV light. Unfortunately, many car windshields protect the passengers from UV light while not shielding from bright visible light, making photochromic lenses ineffective where they are most needed. Still, they offer the convenience of not having to carry both clear glasses and sunglasses to those who frequently go indoors and outdoors during the course of a day.

Light polarization is an added feature that can be applied to sunglass lenses. Polarization filters remove horizontal rays of light, which can cause glare. Popular among fishermen and hunters, polarized sunglasses allow wearers to see into water when normally glare or reflected light would be seen. Polarized sunglasses may present some difficulties for pilots since reflections from water and other structures often used to gauge altitude may be removed, or instrument readings on liquid crystal displays may be blocked.

Yellow lenses are commonly used by golfers and shooters for their contrast enhancement and depth perception properties. Brown lenses are also common among golfers, but cause color distortion. Blue, purple, and green lenses offer no real benefits to vision enhancement and are mainly cosmetic. Some sunglasses with interchangeable lenses have optional clear lenses to protect the eyes during low light or night time activities and a colored lenses with UV protection for times where sun protection is needed. Debate exists as to whether "blue blocking" or amber tinted lenses have a protective effect. (This text courtesy of Wikpedia )

 

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