Name of Entity State of Formation Partner Provider Health Inc. DE Sixty-Seven Corporation DE TLC Charlotte Leasing Company, LLC NC TLC Chicago Laser Center Inc. IL TLC Chicago Leasing Company, L.L.C. IL TLC Detroit Inc. MI TLC International Inc. DE TLC Management Services Inc. DE TLC Midwest Eye Laser Center, Inc. IL TLC Network Services Inc. DE TLC Piedmont Leasing Company, LLC SC TLC Rocky Mountain Leasing Company, L.L.C. CO TLC Seattle Leasing Company, L.L.C. WA TLC The Laser Center (Atlanta) Inc. GA TLC The Laser Center (Big Sky) Inc. MT TLC The Laser Center (Brea) Inc. CA TLC The Laser Center (Carolina) Inc. NC TLC The Laser Center (Charlotte) Inc. NC TLC The Laser Center (Cleveland) Inc. OH TLC The Laser Center (Columbus) Inc. OH TLC The Laser Center (Delaware) Inc. DE TLC The Laser Center (Indiana) Inc. IN TLC The Laser Center (Institute) Inc. DE TLC The Laser Center (Lima) Inc. OH TLC The Laser Center (Massachusetts) Inc. MA TLC The Laser Center (Miami) Inc. FL TLC The Laser Center (Northeast) Inc. MD TLC The Laser Center (Northwest) Inc. WA TLC The Laser Center (Oklahoma City) Inc. OK TLC The Laser Center (Piedmont) Inc. SC TLC The Laser Center (Rocky Mountain) Inc. CO TLC The Laser Center (South Florida) L.P. FL TLC The Laser Center (Tri-Cities) Inc. TN TLC The Laser Center (Tulsa) Inc. OK TLC The Laser Center (Winston-Salem) Inc. NC TLC The Laser Center (Wisconsin Management) Inc. WI TLC The Laser Center (Wisconsin) Inc. WI TLC Tri-Cities Leasing Company, LLC TN TLC Tulsa Finance Company, L.L.C. OK TLC Winston-Salem Leasing Company, LLC NC VisionMed Alabama LLC AL VisionMed Arizona Inc. AZ VisionMed Carolinas Management Inc. NC VisionMed Connecticut LLC CT VisionMed Delaware Inc. DE Exhibit 21.1 (Page 2) Name of Entity State of Formation VisionMed Illinois Inc. IL VisionMed Kentucky Inc. KY VisionMed Louisiana, Inc. LA VisionMed Maine Inc. ME VisionMed Massachusetts Inc. MA VisionMed Michigan Inc. MI VisionMed MidAtlantic LLC DE VisionMed National Inc. DE VisionMed New Hampshire Inc. NH VisionMed New Jersey Inc. NJ VisionMed Northern California, LLC CA VisionMed Ohio Inc. OH VisionMed Oklahoma Inc. OK VisionMed Pennsylvania Inc. PA VisionMed Rhode Island Inc. RI VisionMed Tennessee, Inc. TN VisionMed Texas Inc. TX VisionMed Vermont Inc. VT VisionMed Washington Inc. WA