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. 2009 Jun 5:374–418. doi: 10.1016/B978-072160561-6.50021-6

Table 18-9.

Systemic Noninfectious Causes of Retinal/Chorioretinal Scarring and Atrophy in the Dog and Cat*

CAUSES DOG† CAT†
Nutritional causes Chronic vitamin E deficiency Taurine deficiency
Cardiovascular diseases

  • Systemic hypertension

  • Chronic severe anemia

  • Systemic hypertension

  • Hyperviscosity syndrome
Toxic causes Sulfonamide/trimethoprim toxicity in Doberman pinschers

  • Megestrol acetate (may induce diabetes mellitus)

  • Griseofulvin
Other systemic causes

  • Sudden acquired retinal degeneration (SARD) syndrome

  • Uveodermatologic syndrome

  • Chédiak-Higashi syndrome (also causes nontapetal hypopigmentation)

  • Mucolipidosis
*

Associated signs include multifocal scarring, pigment clumping, depigmentation, tapetal hyperreflectivity, and attenuation of retinal blood vessels.

†

May be caused by any systemic disease causing posterior uveitis.