THE PREVALENCE OF RETINOPATHY IN CATS WITH SYSTEMIC HYPERTENSION AND CHRONIC-RENAL-FAILURE OR HYPERTHYROIDISM

Thirty-six cats with either chronic renal failure or hyperthyroidism w ere examined. indirect systemic blood pressure and ophthalmic findings were recorded for each cat. Fifteen of 23 cats (65%) with chronic ren al failure had blood pressure readings consistent with hypertension. T welve of these 15 (80%) had hypertensive retinopathy. Three of 13 cats (23%) with hyperthyroidism had blood pressure readings consistent wit h hypertension. One of these three cats (33%) had hypertensive retinop athy. The most common findings of hypertensive retinopathy were hemorr hages and intraretinal serous exudates.