Sunglasses have existed since Roman times when Emperor Nero used emeralds to watch gladiator fights. They evolved to include polarized lenses in the 1930s. Today the sunglasses market in India is estimated at Rs. 4.8 billion and projected to grow to Rs. 11 billion in five years. Popular brands sold in India include Ray-Ban, Oakley, and Fastrack. Ray-Ban was introduced in 1937 for the US Army and gained popularity through use by celebrities in films like Top Gun and Men in Black. It has an estimated 50% market share in India.