Sunglasses have both practical and aesthetic functions. First developed as a form of protective eyewear, they quickly became a fashion statement. In fact, nowadays, the majority of people who buy sunglasses see them as a fashion accessory. However, sunglasses still serve the practical purpose of protecting the eyes from the sun’s glare when driving, piloting airplanes, boating, and playing sports like golf. Polarized safety glasses take the practical functions even further by minimizing the glare through the use of specially coated lenses. Sunglasses as a fashion statement Sunglasses fall into two general categories, based on the shape of the lenses.…