Sunglasses are a type of eyewear that is designed to protect the eyes from the sun's harmful ultraviolet (UV) rays and glare. They typically consist of lenses that are made from materials such as glass, polycarbonate, or plastic, which are tinted to reduce the amount of visible light that reaches the eyes.
Sunglasses come in a wide range of styles and designs, from classic aviators to trendy oversized frames. They can also feature various lens shapes, including round, rectangular, and oval. Some sunglasses are polarized, which means they have a special coating that reduces glare by filtering out light that is reflected off of flat surfaces like water, snow, or pavement.
Sunglasses are not just a fashion accessory but also an essential tool for protecting the eyes from UV damage.