While they’re often associated with a more modern look, mirrored lenses first showed up on sunglasses way back in the summer of 1948. According to Mike Evans’ Sunglasses, they were introduced as a technical innovation that supposedly reflected 30% of the sun’s infrared rays. But that’s not what made them so popular. Mirrored sunglasses quickly became a trendy fashion accessory, particularly among youths. For example, the 1960s starlet Sarah Miles was pictured wearing a pair when she was just 18. Today, they remain a fashionable accessory, due in large part to their popularity among young Hollywood stars who favor mirrored sunglasses for their ability to mask the eyes. Modern mirrored sunglasses are available in a variety of styles and materials, including plastic, wood, and metal, and are sold a multiple price points.