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Sunglasses allow better vision in bright daylight, and may protect one's eyes against damage from high levels of ultraviolet light. Typical sunglasses are darkened for protection against bright light or glare; some specialized glasses are clear in dark or indoor conditions, but turn into sunglasses when in bright light. Most sunglasses do not have corrective power in the lenses; however, special prescription sunglasses can be ordered. Specialized glasses may be used for viewing specific visual information (such as stereoscopy) or 3D glasses for viewing three-dimensional movies. Sometimes glasses with no corrective power in the lenses are worn simply for aesthetic or fashion purposes. Even with glasses used for vision correction, a wide range of designs are available for fashion purposes, using plastic, wire, and other materials.
However, a minor decrease of visitors spontaneous for several days following a redesign. In order to bring the brand new version of your site to you, Google takes a very little time in crawling and indexing the revamped web pages. This makes a temporary decline of organic traffic. At this point, you'll want to worry provided that the decline is a bit more than 10% and the visitors are slowing exponentially. Then, you should inspect the below mentioned three elements to be aware of the situation.
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