Uvea Flashcards
Uvea Terminology
Heterochromia Iridis (or Iridum)
Iris Coloboma
Persistent Pupillary Membranes (PPMs)
• PPMs
– Iris-to-iris*
– Iris-to-cornea
– Iris-to-lens
• Cause corneal or lenticular opacity where contact occurs (NOT desirable)
Iris Atrophy
- Progressive thinning of the iris
- Scalloped pupil, transillumination defects due to stromal thinning, full-thickness holes
- Common finding in old dogs
Uveal Cysts
- Iris or ciliary body cysts
- Benign, usually an incidental finding
Inflammation of the Uvea =
Uveitis
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Uveitis terminology
• Anterior uveitis
• Posterior uveitis
• Panuveitis
• Endophthalmitis
• Panophthalmitis
Uveitis Causes
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Anterior Uveal Tract
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Signs of Anterior Uveitis
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Posterior Uveal Tract
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Signs of ACTIVE Posterior Uveitis
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Signs of INACTIVE Posterior Uveitis
Causes of Uveitis:
There are MANY!
Most common?
IDIOPATHIC
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- *Causes of uveitis:**
- *ocular manifestations of systemic dz**
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- *Causes of uveitis:**
- *primary ocular**
Uveitis Workup
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Treatment of Uveitis (general)
- Treat cause if known (Specific)
- In most cases the cause is not known…. (Symptommatic)
Goals of therapy
- Decrease inflammation
- Relieve pain
- Prevent complications of uveitis
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Anti-inflammatory Therapy
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Treatment of Uveitis
- systemic immunosuppresives
- antimicrobials
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- *Treatment of Uveitis**
- *• Mydriatic/cycloplegic**
Sequelae of Uveitis
Uveal Neoplasia
Treatment of Uveal Tumors
- Thorough physical examination
- Thoracic radiographs and abdominal radiographs/ultrasound
– Especially in cats with FDIM - Local treatment
– Excision or laser (focal lesions) - Enucleation & histopathology
– Extensive primary tumors
– Inflamed or glaucomatous eyes - Chemotherapy
– Ocular metastasis from distant site
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Summary
• Common clinical signs of anterior uveitis:
• Inactive posterior uveitis =
• Most common diagnosis =
• Treatment goals for uveitis include…
- Common clinical signs of anterior uveitis:
– Aqueous flare, miosis, hypotony - Inactive posterior uveitis = chorioretinal scars (tapetal hyperreflectivity)
- There are many possible causes of uveitis in small animals
– Most common diagnosis = idiopathic - Treatment goals for uveitis include decreasing inflammation, relieving pain, and preventing complications/sequelae
