Mary & Douglas Perkins was born in Guernsey, United Kingdom, United Kingdom. Mary & Douglas Perkins is #1620 in List Billionaires People In The World. Mary Perkins, an optometrist, and her husband Douglas, whom she met at Cardiff University, bought her father's optician business decades ago. That led to optical chain Specsavers, which got a boost from the deregulation of opticians by the Thatcher Administration. It is now the world's largest private optician chain, selling more than 15 million eyeglasses and 380 million contact lenses each year. Mary reportedly disguises her appearance from time to time to make secret inspections of Specsavers stores.