Treatment of Meibomian Gland Dysfunction and Evaporative Dry Eye

Inclusion Criteria: * At least 18 years of age. * Meibomian gland obstruction * Dry eye symptoms * Willingness to comply with study procedures and return for all visits Exclusion Criteria: * Ocular surgery, injury, or herpes infection within past 3 months * Active ocular infection * Active ocular inflammation or recurrent inflammation within past 3 months * Moderate to severe allergic conjunctivitis * Severe eyelid inflammation * Eyelid abnormalities that affect lid function * Ocular surface abnormalities that may compromise corneal integrity * Macular disease * Systemic disease condition or medication that causes dry eye * Use of other treatments for meibomian gland dysfunction or dry eye * Pregnant or nursing women * Participation in another ophthalmic clinical trial within past 30 days