EX-31.1 3 d273854dex311.htm CERTIFICATION OF PRINCIPAL EXECUTIVE OFFICER

Certification of Principal Executive Officer

Exhibit 31.1

Certification of Principal Executive Officer pursuant to Rule 13a-14(a) and Rule 15d-14(a) of the Securities Exchange Act of 1934, as amended.

CERTIFICATIONS

I, Paul Ashton, certify that:

1. I have reviewed this Annual Report on Form 10-K/A (Amendment No. 1) of PSIVIDA CORP.;

2. Based on my knowledge, this report does not contain any untrue statement of a material fact or omit to state a material fact necessary to make the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the period covered by this report;

Date: December 27, 2011

		/S/    PAUL ASHTON
Name:		Paul Ashton
Title:		President and Chief Executive Officer (Principal Executive Officer)