A Study to Determine if 0.6% ISV-403 is Safe and Effective in the Treatment of Bacterial Conjunctivitis.

Inclusion Criteria: * Must have a diagnosis of acute bacterial conjunctivitis and exhibit purulent conjunctival discharge and redness in at least one eye. * Females of childbearing potential must utilized reliable contraceptive methods and have a negative pregnancy test. Exclusion Criteria: * Pregnant or nursing females. * Known hypersensitivity to fluoroquinolones or to any of the study ingredients. * Use of any antibiotic within 72 hours of treatment. * Any disease or condition that could interfere with the safety and efficacy evaluations of the study medications. * Participation in an ophthalmic drug or device research study within 30 days prior to entry into the study.