Usually if you take your sunglasses to a lens crafter store or a Sunglass Hut store , then you get more accurate information.Beam ban aviator is developed to protect pilots eyes from everlasting damages as a result of the harmful sunlight when flying.
 <a href="http://www.slteam.com/Private/canceldate.asp" rel="nofollow">occhiali da sole ray ban online</a>