Prescription is not only a piece of paper, it's also a proof of ocular conditions for those who want to buy a pair of glasses,hermes birkin bags. If you want to know the diopter of your eyes or your pupillary distance exactly, you should go to see an optometrist or ophthalmologist and he will test your eyes meticulously and give you a prescription. Only with this paper you are allowed to match glasses. Or the opticians will not grant a favor for you. However, many people think they don't need the prescription as they are not eye disorders and only to buy ordinary sunglasses. Yet, pupillary distance makes effort as well, which is one considerable factor to buy sunglasses. Chanel has long reigned as one of the world's most prestigious brands. Unlike virtually all of its rivals, it has never fallen out of style. Inevitably much of the credit goes to Coco Chanel's personal, ground-breaking originality,coach poppy collection, but for more than 20 years it is Karl Lagerfeld who has carried the torch for the House of Chanel.With the style and sass of its perfume line is the Chanel sunglasses line. And yes, Chanel were also propelled to great stardom when the girls of Sex and the City started wearing them.Over the year sunglasses have become more stylish and comfortable, but the initial ones were more subtle, with colored frames but very big. For different conditions and weather, lenses of sunglasses can be changed. The dark, clear lenses can used to enhance visibility in sunlight and the yellow ones can be used to soak in bright sunlight,rayban sunglasses. When you are wearing dark sunglasses, ensure that it does not cover your entire face. Bike sunglasses have to fit your face well and remain comfortable too. Sunglasses are less likely to fall when you are cycling if they have nose pieces and adjustable legs.