EXHIBIT 23.1



            CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRM

We consent to the reference to our firm under the caption "Experts" and to the
use of our reports dated (a) August 13, 2004 with respect to the consolidated
financial statements of OccuLogix, Inc. (the "Company," formerly Vascular
Sciences Corporation) as at December 31, 2003 and 2002 and for each of the years
in the three year period ended December 31, 2003 and (b) August 13, 2004 with
respect to the financial statements of OccuLogix, L.P. as at December 31, 2003
and 2002 and for the year ended December 31, 2003 and for the period from
July 25, 2002 to December 31, 2002, in the Registration Statement (Amendment
No. 2 to Form S-1 No, 333-118204) and related Prospectus of the Company dated
November 15, 2004.




/s/ Ernst & Young LLP
Toronto, Canada
November 15, 2004