Meibomian Gland Dysfunction

The outermost layer of the tear film, the lipid layer, is composed of oils from meibomian gland secretions that lubricate, prevent evaporation, and perform barrier functions. If glands become obstructed, qualitative and quantitative changes in glandular secretion may lead to symptoms of eye irritation, clinically apparent inflammation, and ocular surface disease. This content is intended for Health Care Professionals in the United States.