What is the name of the eyelid glands that secrete oil?

The eyelid glands responsible for secreting oil are called Meibomian glands. These are specialized sebaceous glands located along the inner margin of the eyelids, and their primary function is to produce meibum, an oily substance that helps to prevent the evaporation of the tear film. This oily layer is essential for maintaining proper lubrication of the eye and ensuring comfort during blinking.

Meibomian glands play a vital role in the overall health of the ocular surface. When these glands do not function properly, it can lead to conditions such as dry eye syndrome. Through their secretion, they ensure that the tear layer remains stable and protects the surface of the eye.

The other types of glands mentioned do not secrete oil in the context of the eyelid or eye health. Ciliary glands, for instance, are located near the eyelashes and produce a watery secretion, while sudoriferous glands are sweat glands and sebaceous glands can refer to oil-secreting glands found in various parts of the skin but are not specifically identified as eyelid glands. Therefore, the Meibomian glands are distinctly known for their oily secretion that is crucial for eye health.