Mary Perkins sold for £2 million in 1980, and continue to receive income from. After the sale the couple moved to Guernsey, where Mary's father had retired. Mary and Doug Perkins established Specsavers in Guernsey in 1984. In 2007 it was the largest privately owned opticians in the world, with nearly 900 stores across the UK and Europe. By 2011 the company had an annual turnover of £1.5bn and over 30,000 staff in markets in the UK, Europe and Australasia. Her current title at Specsavers is "founder". Dame Mary sits on the company board, oversees business development and has particular responsibility for
Specsavers family control of the firm, which currently employs all three of their children in senior roles. Continued expansion into Europe is planned. It is also intended that the company will continue to supply hearing aids. The Perkinses attribute their success to their franchise model, and to the deregulation of the UK Opticians market by the Conservative Prime Minister Margaret Thatcher in the 1980s, allowing opticians to use previously forbidden advertising and marketing techniques to rapidly take over a market that had belonged to independent local opticians. The Perkins have said of the remaining local opticians that "their days are numbered",