Your senior cat is bumping into furniture, or stops responding when you call their name. Here’s what’s likely happening and what you can actually do about it.
The short answer: both vision and hearing loss are common in cats over 10. They progress slowly in most cases, and cats adapt well when their environment stays consistent. What demands immediate attention is sudden change — because sudden vision loss in particular can signal a medical emergency that’s entirely treatable if you catch it early.
How to Tell If Your Senior Cat Is Losing Vision
Gradual vision loss in cats often goes unnoticed longer than you’d expect. Cats compensate using their other senses — whiskers, hearing, memory of where furniture is — so a cat who’s partially blind can navigate a familiar home remarkably well.
Watch for:
- Pupils that don’t adjust to light — dim the lights and check whether your cat’s pupils dilate appropriately. Pupils that stay fixed in size, or where one differs noticeably from the other, are a red flag.
- High-stepping gait — patting the floor more carefully before placing each foot, as though testing whether it’s solid
- Hesitating before jumping — onto surfaces they’ve used a thousand times before
- Bumping into objects especially in low light, or after furniture has been moved
- Eye cloudiness — this needs a distinction worth knowing: nuclear sclerosis is a normal aging change that makes the lens appear slightly bluish-grey or hazy. It doesn’t significantly impair vision. Cataracts look similar but are white and denser, and they do impair vision. A vet can tell them apart with an ophthalmoscope; you cannot.
The most critical thing: sudden vision loss — especially in one eye, or both eyes rapidly declining — is a veterinary emergency. Feline systemic hypertension (high blood pressure) can cause retinal detachment within hours, leading to total, permanent blindness. It’s the single most common cause of acute vision loss in older cats, and it’s highly treatable if you act quickly. If your cat is struggling to see today when they seemed fine yesterday, call your vet the same day.
How to Tell If Your Senior Cat Is Losing Hearing
Hearing loss tends to be more gradual than vision loss, and harder to pin down because the signs overlap with other age-related changes.
Signs to watch for:
- Not responding to their name or to familiar sounds — the food bag rustling, the can opener, the sound of your keys — that previously got an immediate reaction
- Sleeping more deeply and not waking to sounds that would have woken them before
- Vocalising more loudly — cats who can’t hear themselves will adjust their volume. A suddenly very chatty cat who seems to be meowing at nothing may be compensating for what they can’t hear back.
- Startling easily when approached from behind — a hearing cat knows you’re coming. A deaf cat doesn’t, and being touched unexpectedly can alarm them even if you’re their person.
Note that these signs can also be explained by pain, cognitive decline, or other illness — especially in cats over 12. See Signs of Pain in Older Cats (And What to Do) for what else to rule out before assuming it’s a hearing issue.
What Causes Sensory Loss in Older Cats
Vision: The most important cause in senior cats is systemic hypertension — high blood pressure that damages the retina and can cause it to detach. It’s often secondary to kidney disease or hyperthyroidism, both of which become more common after age 10. This is why blood pressure monitoring matters at every senior wellness visit: hypertension can develop silently and then cause sudden vision loss with little warning.
Other causes include progressive retinal atrophy (usually diagnosed younger), cataracts (less common in cats than in dogs), glaucoma, and tumours behind the eye. Most are diagnosable at a routine vet exam.
Hearing: Age-related degeneration of the cochlea — essentially the same process that causes hearing loss in older humans — is the most common cause. It’s gradual, progressive, and there’s no treatment that restores it. But it doesn’t cause pain, and most cats adapt well if their environment supports them. Ear infections, inflammatory polyps, and certain drugs can also affect hearing and are worth ruling out.
Adapting Your Home and Routine
The single most important thing you can do for a cat with reduced vision or hearing is: don’t rearrange the furniture. Cats with sensory loss navigate partly by memory — they build an internal map of where everything is. Consistency is their GPS.
For a cat losing vision:
- Night lights in hallways and frequently-used rooms — even low ambient light helps a cat with partial vision
- Keep food, water, and litter in exactly the same locations
- Alert your cat before touching them — approach from an angle where they can see some movement, or speak quietly before reaching out
- Avoid startling them from behind or from above
For a cat losing hearing:
- Develop a vibration-based signal — a gentle stomp on the floor or a light tap nearby before entering a room gives them a heads-up that you’re coming
- Tap lightly on the surface near them before petting rather than reaching toward their head directly
- If you have other pets, consider a small bell on their collars so the deaf cat can hear them approaching
Both conditions are helped by keeping the cat’s core environment stable — same sleeping spots, same feeding schedule, same daily routine. Caring for a Senior Cat: What Changes After Age 11 covers the broader picture of what shifts as cats age and how to plan for it.
If your cat has also been diagnosed with arthritis, the same strategies apply: consistency, predictability, and not asking joints or senses to work harder than they need to.
When to See a Vet
Same day, every time: Any sudden change in vision — one eye, both eyes, even if it seems to partially resolve. This is hypertension until proven otherwise, and the window for preventing permanent damage is short.
Within a week: First signs of hearing loss you can’t attribute to something else. Rule out ear infections, polyps, and any recent medications that affect the inner ear.
At every senior wellness visit: Blood pressure checks should be routine for cats over 10. The American Association of Feline Practitioners (AAFP) recommends twice-yearly exams for cats over 11 — not because they’re fragile, but because conditions like hypertension can develop and progress between annual visits. See How Often Should You Take Your Cat to the Vet? A Life-Stage Guide for what those senior check-ups should actually include.
If your senior cat has been losing weight, drinking more water, or seems generally off alongside the vision or hearing changes, mention all of it to your vet at once — these things often have a common underlying cause (kidney disease, hyperthyroidism) that’s very manageable when caught and treated.
The Bottom Line
A cat who has lost most of their hearing, or significant vision, can still have a genuinely good quality of life. Cats adapt. They rely more heavily on the senses they retain. What they need from you is a stable, predictable environment; regular vet monitoring to catch and treat underlying conditions like hypertension before they cause permanent damage; and the small adjustments to how you approach and interact with them that let them use their remaining senses without being startled.
They’re still the same cat. They just need you to show up a little differently.