A customer looks at eyeglasses displayed at an optical retailer on May 9, 2014 in Bethune, northern France. To reduce optical expenses, among the highest in Europe, French Health Minister Marisol Touraine plans by 2015 to put under a limit of 450 euros the reimbursement of eyeglasses prescription expenses by mutual funds. AFP PHOTO / DENIS CHARLET        (Photo credit should read DENIS CHARLET/AFP via Getty Images)