High blood pressure in cats causes silent organ damage until acute crises occur — regular monitoring and treatment protect vision, kidneys, and brain from hypertensive injury.
Feline hypertension causes organ damage that progresses silently until catastrophic events including sudden blindness, stroke, or cardiac crisis occur. A cat that was well one day may be irreversibly blind the next from hypertensive retinal detachment — a welfare emergency that systematic monitoring can prevent. Blood pressure screening for cats with risk factors (kidney disease, hyperthyroidism, age over 9) allows antihypertensive treatment to begin before target organ damage occurs. Effective treatment is simple, well-tolerated, and prevents enormous welfare harm.