meibomian gland

…the border of the eyelids—the meibomian glands—are so large that they are easily seen with the naked eye when the eyelids are everted. The glands on the genitalia produce copious amounts of sebaceous matter called smegma. Only humans have rich populations of sebaceous glands on the hairless surfaces of the…

Thus, the meibomian, or tarsal glands, consist of a row of elongated glands extending through the tarsal plates; they secrete an oil that emerges onto the surface of the lid margin and acts as a barrier for the tear fluid, which accumulates in the grooves between the eyeball and…

…or by dysfunction of the meibomian glands. Seborrheic dermatitis, which produces scalp and eyebrow dandruff, can give rise to either anterior or posterior blepharitis. Symptoms include itching of the eye, a burning sensation in the eye, excessive tear production, photophobia, swollen and red eyelids, sticky eyelids, and crusting and loss…

… results from inflammation of a meibomian gland, one of the modified sebaceous glands that lie close to the eyeball along the margin of the eyelids. It may be caused by an infectious (i.e., staphylococcal) or noninfectious process. Internal sties can be more painful than external sties because they are pressed…

…in the inner eyelid, called meibomian glands, that open onto the lid margin. Since the glands are embedded in tough fibrous tissue, the pain and reaction may be more severe than in a sty of the lash follicle. Examination of the internal surface of the lid often shows a red,…