Felis ISSN 2398-2950

Micropunctum

Synonym(s): Microlacrimal punctum

Contributor(s): Dennis E Brooks, Newman Lorna, David Williams

Introduction

  • Cause: variation of imperforate punctum - congenital abnormality of lacrimal system more common in the lower punctum.
  • Signs: epiphora Epiphora common - may have rust-colored staining of hair at medial canthus.
  • Diagnosis: delayed fluorescein drainage Fluorescein test /difficulty in cannulating duct.
  • Treatment: surgery if required.
  • Prognosis: good.

Pathogenesis

Etiology

  • Congenital.

Pathophysiology

  • Congenital narrowing of lacrimal punctum   →   epiphora (tear overflow) Epiphora.

Timecourse

  • Usually not seen >8 weeks old.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

Other sources of information

  • Petersen-Jones S & Crispin S (2002) BSAVA Manual of Small Animal Ophthalmology. 2nd edn. British Small Animal Veterinary Association. ISBN 0 905214 54 4


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