Safety of Besivance™ (Besifloxacin Ophthalmic Suspension) 0.6% Compared to Vehicle

Inclusion Criteria: * Subjects must have a clinical diagnosis of acute bacterial conjunctivitis and exhibit purulent conjunctival discharge (crusty or sticky eyelids) and redness in at least one eye. * Subjects who are willing to discontinue contact lens wear for the duration of the study. * Subjects who are able and willing to comply with all treatment and follow- up/study procedures. Exclusion Criteria: * Subjects who have any uncontrolled systemic disease or debilitating disease. * Subjects with a known hypersensitivity or contraindications to Besivance, fluoroquinolones, or any of the ingredients in the study drugs. * Subjects who are expected to require disallowed concurrent systemic or ocular therapy(either eye)during or prior to study start. (ie, NSAIDs, corticosteroids, mast cell stabilizers, antihistamines, decongestants or antimicrobial therapy) * Subjects having ocular surgery (including laser surgery) in either eye within six weeks prior to entry into this study. * Subjects with suspected viral or allergic conjunctivitis or any other disease conditions that could interfere with the efficacy and safety evaluations of the study medication. * Subjects with suspected iritis. * Subjects with a history of recurrent corneal erosion syndrome, either idiopathic or secondary to previous corneal trauma or dry eye syndrome. * Subjects with any active ulcerative keratitis, specifically any epithelial loss greater than punctate keratitis. * Subjects who are immune compromised.