CooperVision turned out 625 million contact lenses in Gyál last year, and the investment will double over three years, the minister said. CooperVision exports 99.7% of its Hungarian output. Even with the remaining 0.3%, CooperVision is a market leader in Hungary, company president Daniel G. McBride said. McBride said his company acquired U.K. peer Sauflon last year, which had a unit in Gyál, established ten years earlier.