Whether it is summer or not, you should always keep a pair of sunglasses with you and wear them whenever you are out under the sun. Beyond making you look trendy and stylish, sunglasses have another, more important function and that is to protect your eyes from ultraviolet rays.
Not all sunglasses, however, are capable of doing that for you. In fact, wearing the wrong kind of sunglasses, one that does not provide any UV protection, is more likely to cause damage to your eyes rather than protect them