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punctal plug

punctal plug noun: a small device that is inserted into the tear duct of an eye to block the duct, preventing the drainage of liquid from the eye.

Noun

punctal plug (plural punctal plugs)

  1. A small device that is inserted into the tear duct of an eye to block the duct, preventing the drainage of liquid from the eye.
    • The punctal plug has been found useful in treating keratoconjunctivitis sicca (dry eye) and is believed to be suitable for treating other ophthalmic ailments where retention of lacrimal fluid on the surface of the eye and in the lacrimal lake is desired or where sustained release of an ophthalmic...1976 April 13, Jerre M. Freeman, Punctum plug and method for treating keratoconjunctivitis sicca (dry eye) and other ophthalmic aliments using same, US Patent 3949750 (PDF version)
    Synonyms:
    tear duct plug, lacrimal plug

Synonyms of punctal plug

  • tear duct plug
  • lacrimal plug

Forms of punctal plug

pluralpunctal plugs

Questions about punctal plug

What does punctal plug mean?
Punctal plug means a small device that is inserted into the tear duct of an eye to block the duct, preventing the drainage of liquid from the eye.
What part of speech is punctal plug?
Punctal plug is a noun.
What is the plural of punctal plug?
The plural of punctal plug is punctal plugs.

Words near punctal plug in the dictionary

  1. punct
  2. puncta
  3. puncta delentia
  4. punctae
  5. punctal
  6. punctal plug
  7. punctal plugs
  8. punctate
  9. punctate-striate
  10. punctated
  11. punctately

Source and license

Adapted from Wiktionary: punctal plug (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

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