The Effects of Azithromycin Ophthalmic Solution, 1% Versus Placebo in Subjects With Blepharitis During a Four-Week Treatment Period (P08638)

Inclusion Criteria: * Have best corrected visual acuity in both eyes of at least +0.7 or better * If female, are non-pregnant or non-lactating * Have a current diagnosis of blepharitis in one or both eyes Exclusion Criteria: * Have lid structural abnormalities * Have suspected ocular fungal or viral infection * Have practiced warm compress therapy within 14 days prior to Visit 2 * Unable to withhold the use of contact lenses during the treatment or follow-up periods * Unable to withhold the use of ocular cosmetic products within 24 hours prior to study visits * Have had penetrating intraocular surgery within 90 days prior to Visit 2 * Have had ocular surface surgery within the past year prior to Visit 2 * Have a serious medical condition which could confound study assessments