Canis ISSN: 2398-2942

Blepharitis

Contributor(s): Paul Gerding

Introduction

  • Inflamed eyelids Blepharitis.
  • Causes: generalized skin disease, eg demodicosis, autoimmune skin disease, dermatophytosis.
  • Treatment: often need systemic antibiosis +/- warm compresses; oral/topical corticosteroids.
  • Prognosis: self-trauma is common complication; Staphylococcal blepharitis can be difficult to resolve.

Pathogenesis

Etiology

  • May be primary disease of eyelids or part of generalized dermatopathy.
Parasitic Fungal infection Bacterial
  • Juvenile pyoderma Juvenile cellulitis.
  • Bacterial blepharitis (may be chronic) - oftenStaphylococcusspp/Streptococcusspp.
  • Hordeolum (external stye).
  • Chalazion (internal stye).
Allergic Immune-mediated Endocrine-related Post-parotid duct transposition Seborrheic Self-trauma
  • Secondary to ocular irritation.
Neoplastic
  • Adenoma and papilloma most common.

Predisposing factors

General
  • Older dogs predisposed (9-10 years).

Pathophysiology

  • Underlying skin disease or infection (Staphylococcusspp often isolated) → inflammation of eyelids. If abscess formation may → cicatricial entropion Entropion or ectropion Ectropion.
  • Many possible etiologies.
  • Allergic response to bacterial toxins may exacerbate the condition.

Timecourse

  • Depends on cause.

Diagnosis

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Treatment

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Outcomes

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Further Reading

Publications

Refereed papers

  • Recent references from PubMed and VetMedResource.
  • Glaze M B (1991) Ocular allergy. Semin Vet Med Surg 6 (4), 296-302 PubMed.
  • Chamber E D & Severin G A (1984) Staphylococcal bacteria for treatment of chronic staphylococcal blepharitis in the dog. JAVMA 185 (4), 422-5 PubMed.

Other sources of information

  • Bedford P C (1999)diseases and Surgery of the canine eyelid.In:Veterinary Ophthalmology3rd edn. Ed K N Gelatt. pp 535-568.


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