Lacrimal Apparatus: Structure, Function, and Clinical Significance

The Lacrimal Apparatus

Write a short note on the lacrimal apparatus.
Answer.

The group of structures concerned with the formation and drainage of lacrimal fluid (tear fluid) constitutes the lacrimal apparatus.

Lacrimal Apparatus Components Lacrimal apparatus consists of the following components:

• The lacrimal gland and its ducts
• Conjunctival sac
• Lacrimal puncta and lacrimal canaliculi
• Lacrimal sac
• Nasolacrimal duct

Lacrimal Apparatus Route of drainage

Lacrimal Apparatus Applied anatomy

Dacryocystitis It is an inflammation of the lacrimal sac and presents with pain, oedema and redness at the medial angle of the eye.

Epiphora: The obstruction of the lacrimal fluid pathway (i.e. at the level of puncta, canaliculi or nasolacrimal duct) causes overflow of tears on the cheek. It is called epiphora.