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EXHIBIT 31.1 Certification of Chief Executive Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Stephen J. Fanning, certify that:  1.
    
    I have reviewed this quarterly report on Form 10-Q of Ocular Sciences, Inc.;  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;3.
    
    Based on my knowledge, the financial statements, and other financial
information included in this report, fairly present in all
material respects the financial condition, results of operations and cash
flows of the registrant as of, and for, the periods presented
in this report;4.
    
    The registrants other certifying officer and I are responsible for
establishing and maintaining disclosure controls and procedures
(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant
and have:  a)
    
    designed such disclosure controls and procedures, or caused such
disclosure controls and procedures to be designed under our
supervision, to ensure that material information relating to the
registrant, including its consolidated subsidiaries, is made
known to us by others within those entities, particularly during the
period in which this report is being prepared;b)
    
    evaluated the effectiveness of the registrants disclosure controls
and procedures and presented in this report our conclusions
about the effectiveness of the disclosure controls and procedures, as of
the end of the period covered by this report based on
such evaluation; andc)
    
    disclosed in this report any change in the registrants internal
control over financial reporting that occurred during the
registrants most recent fiscal quarter that has materially affected, or
is reasonably likely to materially affect, the registrants
internal control over financial reporting; and  5.
    
    The registrants other certifying officer and I have disclosed, based on
our most recent evaluation of internal control over financial
reporting, to the registrants auditors and the audit committee of the
registrants board of directors (or persons performing the
equivalent functions):  a)
    
    all significant deficiencies and material weaknesses in the design or
operation of internal control over financial reporting
which are reasonably likely to adversely affect the registrants ability
to record, process, summarize and report financial
information; andb)
    
    any fraud, whether or not material, that involves management or other
employees who have a significant role in the
registrants internal control over financial reporting. Date: November 9, 2004 /s/ Stephen J. FanningStephen J. FanningChief Executive
Officer




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Certification of Chief Financial Officer
Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002 I, Steven M. Neil, certify that:  1.
    
    I have reviewed this quarterly report on Form 10-Q of Ocular
Sciences, Inc.;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;3.
    
    Based on my knowledge, the financial statements, and other financial information included in this report,
fairly present in all
material respects the financial condition, results of operations and cash flows of the registrant as of, and
for, the periods presented
in this report;4.
    
    The registrants other certifying officer and I are responsible for establishing and maintaining
disclosure controls and procedures
(as defined in Exchange Act Rules 13a-15(e) and 15d-15(e)) for the registrant and have:  a)
    
    designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be
designed under our
supervision, to ensure that material information relating to the registrant, including its consolidated
subsidiaries, is made
known to us by others within those entities, particularly during the period in which this report is being
prepared;b)
    
    evaluated the effectiveness of the registrants disclosure controls and procedures and presented in this
report our conclusions
about the effectiveness of the disclosure controls and procedures, as of the end of the period covered by
this report based on
such evaluation; andc)
    
    disclosed in this report any change in the registrants internal control over financial reporting that
occurred during the
registrants most recent fiscal quarter that has materially
affected, or is reasonably likely to materially affect, the registrants
internal control over financial reporting; and  5.
    
    The registrants other certifying officer and I have disclosed, based on our most recent evaluation of internal
control over
financial reporting, to the registrants auditors and the audit committee of the registrants board of
directors (or persons
performing the equivalent functions):  a)
    
    all significant deficiencies and material weaknesses in the design or operation of internal control over
financial reporting
which are reasonably likely to adversely affect the registrants ability to record, process, summarize and
report financial
information; andb)
    
    any fraud, whether or not material, that involves management or other employees who have a significant
role in the
registrants internal control over financial reporting. Date: November 9, 2004 /s/
Steven M. NeilSteven M. NeilChief Financial Officer