Exhibit 32.3

CERTIFICATION OF INTERIM CHIEF FINANCIAL OFFICER
PURSUANT TO 18 U.S.C. SECTION 1350,
AS ADOPTED PURSUANT TO
SECTION 906 OF THE SARBANES-OXLEY ACT OF 2002

In connection with the Annual Report of TLC Vision Corporation (the “Company”) on Form 10-K for the period ended December 31, 2009 as filed with the Securities and Exchange Commission on the date hereof (the “Report”), I, William J. McManus, Interim Chief Financial Officer, certify, pursuant to 18 U.S.C. § 1350, as adopted pursuant to § 906 of the Sarbanes-Oxley Act of 2002, that to the best of my knowledge:

(1) The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and

(2) The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of the Company.

Date: March 31, 2010
 

/s/ William J. McManus  

William J. McManus 

Interim Chief Financial Officer 

* A signed original of this written statement required by Section 906, or other document authenticating, acknowledging, or otherwise adopting the signature that appears in typed form within the electronic version of this written statement required by Section 906, has been provided to TLC Vision Corporation and will be retained by TLC Vision Corporation and furnished to the Securities and Exchange Commission or its staff upon request.