BUSINESS: Retailers Leading Mass Merchants, Clubs With Optical Departments By CATHY CICCOLELLA: SENIOR EDITOR Monday, May 18, 2009 1:30 AM RELATED CONTENT Cover Story: Top 50 U.S. Optical Retailers 2009 Mass Merchants, Clubs Show Gains Despite Economy Top 10 Snapshots Top 50 Methodology Top 50 Retailers Listed Alphabetically Key Optical Players Ranked By U.S. Sales in Calendar 2008 Top Optical 50 Retailers’ Sales Hold Strong in 2008