Lacrimal punctum

Template:Short description Template:Template otherTemplate:Main other The lacrimal punctum (Template:Plural form: puncta) or lacrimal point is a minute opening on the summits of the lacrimal papillae, seen on the margins of the eyelids at the lateral extremity of the lacrimal lake. There are two lacrimal puncta in the medial (inside) portion of each eyelid. Normally, the puncta dip into the lacrimal lake.

Together, they function to collect tears produced by the lacrimal glands. The fluid is conveyed through the lacrimal canaliculi to the lacrimal sac, and thence via the nasolacrimal duct to the inferior nasal meatus of the nasal passage.

Additional images

• A close up of a lacrimal punctum.
  A close up of a lacrimal punctum.
• Lower lacrimal punctum through slit lamp biomicroscope
  Lower lacrimal punctum through slit lamp biomicroscope

See also

• Imperforate lacrimal punctum
• Lacrimal apparatus
• Punctal plug

References

Public domain This article incorporates text in the public domain from Template:Wikidatathe 20th edition of Gray's Anatomy (1918) Template:Main other

External links

• Diagram and discussion at aafp.org Template:Webarchive