Ciliary glands, also known as glands of Moll, are specialized, modified apocrine sweat glands located on the margin of the eyelid.
Location and Description
- Location: These glands reside on the eyelid margin, specifically next to the base of the eyelashes.
- Position relative to other glands: They are positioned anterior to the Meibomian glands, which are also found within the distal eyelid margin.
- Type: They are modified apocrine sweat glands. This means that a portion of the secreting cell breaks off and is released with the secretion.
Function
The ciliary glands contribute to the tear film by producing a watery secretion that helps to keep the eye lubricated. Their secretions also help to wash away debris and prevent infection.
Clinical Significance
Although small, the ciliary glands can be affected by certain conditions:
- Styes: Infection and inflammation of the ciliary glands (or hair follicles of the eyelashes) can result in a stye, which presents as a painful, red bump on the eyelid margin.
- Cysts: Blockage of the ciliary glands can lead to the formation of small cysts on the eyelid.
