A Four Week Study of Azithromycin Ophthalmic Solution, 1% Versus Vehicle in Subjects With Blepharitis (P08636)

Inclusion Criteria: * Have a current diagnosis of blepharitis * Have a best corrected visual acuity (BCVA), using corrective lenses if necessary, in both eyes of at least +0.7 * If female, are non-pregnant or non-lactating Exclusion Criteria: * Have a concurrent acute hordeolum (stye) or chalazion * Have inflammation of the ocular surface * Have used artificial tears within 48 hours prior to Visit 1 or anticipate using during the study * Have had ocular surgery in the past 90 days or will require it during the study * Unable to withhold the use of contact lenses during the study * Have a known hypersensitivity to azithromycin, erythromycin, any other macrolide antibiotic, or any of the other ingredients in the study medication * Have been diagnosed with ongoing glaucoma * Unable to withhold the use of ocular cosmetic products within 48 hours prior to Visit 1 and throughout the study * Have a serious medical condition which could confound study assessments