Lacrimal gland

Lacrimal gland

The Lacrimal gland is a small, almond-shaped structure located in the upper outer quadrant of the orbit, which is the bony cavity containing the eye. It is part of the lacrimal apparatus, which is responsible for the production and drainage of tears.

Anatomy

The lacrimal gland is divided into two parts: the larger orbital part and the smaller palpebral part. The orbital part is located in the lacrimal fossa, a depression in the frontal bone, while the palpebral part extends into the upper eyelid.

Function

The primary function of the lacrimal gland is to produce the aqueous layer of the tear film, which is essential for the health and nutrition of the cornea and conjunctiva. The gland secretes tears, which are spread over the surface of the eye by blinking, providing moisture and nutrients to the eye.

Clinical significance

Diseases of the lacrimal gland can lead to dry eye syndrome, a common condition that can cause discomfort and visual disturbances. Inflammation of the gland, known as dacryoadenitis, can cause pain and swelling. Tumors of the lacrimal gland, although rare, can also occur.

See also

• Tears
• Dry eye syndrome
• Dacryoadenitis
• Lacrimal apparatus

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