Sunglasses serve the purpose of shielding one's eyes from the sun's harmful UV radiation. Sunglasses were first developed as a means of safeguarding one's eyes, but since the 1940s, they have also been a popular accessory. Sunglasses come in a wide variety of makes and models, but some of the most well-known are designer labels. Celebrities' use of these items as a means of anonymity or as...