Sunglasses are a fashion accessory and functional item that protects the eyes from harmful UV rays. They are designed to block out varying levels of sunlight, depending on the brand and type. Sunglasses can be worn for various activities such as driving, swimming, and skiing. There are different types of sunglasses including aviator, wayfarer, round, and square. They are available in various colors, materials, and sizes to cater to different preferences and face shapes. Sunglasses can enhance vision and reduce glare, which makes them essential for outdoor activities. It’s recommended to replace sunglasses every two to three years to ensure they provide adequate protection.