NEW YORK—Vision Monday is again in the process of collecting information from the nation’s largest national chains and regional operations to compile the 2013 Top 50 U.S. Optical Retailers, our signature ranking based on sales during the 2012 calendar year. The 2013 Top 50 U.S. Optical Retailers report and ranking will be featured in the May 20 issue of Vision Monday. To be considered, please go here  VISION MONDAY'S 2012 TOP U.S. OPTICAL RETAILERS and fill out our online survey.