Moll's gland debris. Blockage of the gland's duct causes swelling which can manifest itself as a stye. Moll's gland Glands of Moll, also known as "ciliary glands", are modified apocrine sweat glands that are found on the margin of the eyelid. They are next to the base of the eyelashes, and anterior to the Meibomian glands within the distal eyelid margin. These glands are relatively large and tubular-shaped. The glands of Moll are named after Dutch oculist Jacob Anton Moll (1832–1914). Glands of Moll empty into the adjacent lashes. Glands of Moll and Zeis secrete sebum that keeps lashes supple. The glands
Sebaceous gland due to heightened levels of androgens. Sebaceous glands secrete the oily, waxy substance called "sebum" () that is made of triglycerides, wax esters, squalene, and metabolites of fat-producing cells. Sebum waterproofs and lubricates the skin and hair of mammals. Sebaceous secretions in conjunction with apocrine glands also play an important thermoregulatory role. In hot conditions, the secretions emulsify the sweat produced by the eccrine glands and this produces a sheet of sweat that is not readily lost in drops of sweat. This is of importance in delaying dehydration. In colder conditions, the nature of sebum becomes more lipid and in