Accessory lacrimal glands

Accessory lacrimal glands

Accessory Lacrimal Glands

The Accessory Lacrimal Glands are small, minor glands located in the conjunctiva and eyelids that contribute to the production of tears. They are part of the lacrimal apparatus, which is responsible for maintaining the moisture and health of the eye.

Anatomy

The Accessory Lacrimal Glands are divided into two types: the Glands of Krause and the Glands of Wolfring.

The Glands of Krause are located in the conjunctival fornix, primarily in the upper eyelid. They are more numerous in the upper eyelid than the lower one.

The Glands of Wolfring are found in the tarsal plate of the eyelids, typically near the upper border of the tarsus.

Both types of glands secrete a watery fluid that is a component of the tear film. This fluid helps to lubricate the eye and protect it from dust and other foreign particles.

Function

The primary function of the Accessory Lacrimal Glands is to produce a portion of the tear film that covers the eye. This tear film is essential for maintaining the health of the eye's surface and providing clear vision.

The Accessory Lacrimal Glands, along with the main lacrimal gland, produce the aqueous layer of the tear film. This layer is the middle of the three layers of the tear film, sandwiched between the lipid layer and the mucin layer.

Clinical Significance

Dysfunction of the Accessory Lacrimal Glands can lead to dry eye syndrome, a common condition that can cause discomfort, blurred vision, and other complications. Treatment for dry eye syndrome often involves measures to increase tear production or decrease tear evaporation.

See Also

• Lacrimal apparatus
• Tears
• Dry eye syndrome