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The lacrimal system is a vital element of the eye that produces, distributes, and drains tears. Tears are essential for eye health because they provide sufficient lubrication and protect the eyes from irritants and diseases.
The system consists of various components, including the lacrimal glands, which generate tears. These glands are found in the upper outer corner of each eye and produce a fluid made up of water, lipids, and proteins that nourishes and protects the eye surface. Tears flow from the lacrimal glands onto the eye's surface, spreading with each blink to form a protective layer.
When tears have completed their function, they drain through tiny apertures called puncta at the inner corners of the eyelids. From there, the tears enter the canaliculi, which are little ducts that go to the lacrimal sac. The lacrimal sac links to the nasolacrimal duct, which drains tears into the nasal cavity and frequently explains why your nose runs when you weep.
Dysfunction in the lacrimal system can result in disorders such as dry eye syndrome, which produces inadequate tears, or nasolacrimal duct obstruction, which causes excessive crying. A timely evaluation and treatment by an eye expert is essential for maintaining a healthy lacrimal system and general eye health.