Before you think about buying RX sunglasses, there are a few things to keep in mind. First and foremost, you need to factor in the cost. Next, you need to look for the right style and you also need to make sure that you are buying a pair that is made from the right materials. You also need to decide whether to go for photochromic lenses and you need to make sure that your next pair provides you with total UV protection. It makes sense to shop for your new shades from a reliable and honest online store.