Page 1299 - Problem-Based Feline Medicine

62 – THE CAT WITH ABNORMAL PUPIL SIZE, SHAPE OR RESPONSE 1291

● Feline infectious peritonitis usually causes signs
● Taurine deficiency retinopathy may also produce
in young cats. Typically systemic signs of anorexia,
the signs associated with dilated cardiomyopathy.
lethargy and fever are also seen.
● Hypertensive retinopathy is usually sudden in
onset in an old cat, and typically there is retinal
Treatment
detachment and associated renal and/or thyroid
disease. There is no treatment for progressive retinal degeneration.

RECOMMENDED READING

Aguirre GD. Retinal degeneration associated with the feeding of dog foods to cats. J Am Vet Med Assoc 1978; 172:
791–796.
Bellhorn RW, Aguirre GD, Bellhorn M. Feline central retinal degeneration. Invest Ophthalmol 1974; 608–616.
Bercovitch M, Krohne S, Lindley D. A diagnostic approach to anisocoria. Compend Contin Educ Pract Vet 1995; 17:
661–672.
Glaze MB, Gelatt KN. Diseases of the anterior uvea. In: Stiles J (ed) Ocular Manifestations of Systemic Disease, Part 2.
The Cat. In: Gelatt KN (series ed) Veterinary Ophthalmology, 3rd edn. Baltimore, Maryland, Lippincott, Williams
& Wilkins, 1999, pages 1018–1028, 1448–1467.
Miller W, Johnson B. How ocular signs reveal systemic disease in cats. Vet Med 1989; 780–788.
Sansom J, Barnett KC, et al. Ocular disease associated with hypertension in 16 cats. J Small Anim Pract 1994; 35:
604–611.
Stiles J, Polzin DJ, Bistner SI The prevalence of retinopathy in cats with systemic hypertension and chronic renal
failure or hyperthyroidism. J Am Anim Hosp Assoc 1994; 30: 564–571.