Akzessorentränendrüsen

Akzessorentränendrüsen, also known as accessory lacrimal glands, are small glands located within the eyelids and conjunctiva. They are distinct from the main lacrimal gland, which is responsible for producing the majority of the tears. These accessory glands, primarily the glands of Krause and Wolfring, contribute to the basal tear film, which is essential for maintaining ocular surface lubrication and health.

The glands of Krause are situated in the fornix conjunctivae, the folds where the palpebral conjunctiva meets the bulbar conjunctiva. The glands of Wolfring, also known as the ciliary glands, are located along the superior and inferior tarsal plates. Both types of accessory glands secrete a watery component of the tear film, similar to the main lacrimal gland.

While the main lacrimal gland is primarily responsible for reflex tearing, the accessory lacrimal glands play a continuous role in providing a baseline level of moisture to the eye. This constant secretion is crucial for preventing dryness, irritation, and protecting the cornea from damage. Dysfunction or reduced secretion from these accessory glands can contribute to dry eye syndrome, even if the main lacrimal gland is functioning adequately. Their consistent, low-level tear production is vital for everyday comfort and clear vision.