Exotis ISSN 2398-2985

Reptiles

Dacryocystitis

Contributor(s): Vetstream Ltd, Nadene Stapleton

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Introduction

  • Cause: blockage to the nasolacrimal duct leading from the medial canthus of the eye to the nares.
  • Signs: pseudobuphthalmos (a clear, fluid-filled swelling in the subspectacular space) in reptile species with spectacles. Inflammation of the nasolacrimal duct, epiphora, ocular discharge; bubble formation at the medial canthus in chelonia.
  • Diagnosis: presence of subspectacular fluid accumulation, lack of fluorescein dye appearing at the nares, biomicroscopy.
  • Treatment: antibiotics, flushing (where possible), wedge resection of the spectacle and unblocking of the nasolacrimal duct.
  • Prognosis: good, but recurrence possible.
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Pathogenesis

Etiology

  • Unknown in many cases.
  • May be linked to respiratory tract disease.

Predisposing factors

General

  • Respiratory tract infection.

Pathophysiology

  • Inflammation and infection of the nasolacrimal duct leads to ocular discharge or pseudobuphthalmos in species with spectacles.

Timecourse

  • Signs appear acute, although problem has usually been present for a few days before significant signs develop.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

Other sources of information

  • Williams D (2012) The Reptile Eye. In: Ophthalmology of Exotic Pets. Wiley-Blackwell, UK. pp 174.
  • Lawton M (2006) Reptilian Ophthalmology. In: Reptile Medicine and Surgery. Saunders Elsevier, UK. pp 331-332.

Reproduced with permission from David L Williams: Ophthalmology of Exotic Pets © 2012, published by John Wiley & Sons.


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