Before cameras, Polaroid pioneered polarised sunglasses. After sneaking into the laboratory at Columbia University, Edwin H Land invented filters to polarise light and in 1929 he used this to create the sunglasses lenses. The first pair were sold in 1937, the same year Land founded the eyewear company. With the advance in technology and since 2000, Polaroid sunglasses feature Ultra-Sight lenses made of nine elements. At the core is the polarising filter, blocking horizontal light (which creates glare) reflecting off surfaces such as near water and roads. This is surrounded by protection against UV, UVB and UVC, shock absorbent offering impact resistance, and a scratch resistant layer. This combination means Polaroid sunglasses provide supreme clarity vision dressed in wearable and recognisable shapes.