How to Tell If Your Kitten Is Blind or Deaf

Name: How to Tell If Your Kitten Is Blind or Deaf
Creator: Dr. Zubair Khalid

By Dr. Zubair Khalid, DVM, MS, PhD · 2026-10-03

If you are wondering how to tell if my kitten is blind, watch how she moves through familiar rooms, reaches for toys, and reacts when you wave a hand near her face. Deaf kittens often sleep through loud noises and stop turning toward your voice. Some kittens are born with these problems, and others develop them in the first weeks or months of life.

This article is educational and is not a substitute for veterinary diagnosis or treatment.

Quick Answer

A blind kitten may bump into furniture, hesitate at edges, walk with a low or crouched posture, or fail to track a moving toy with her eyes.
A deaf kitten may not wake to loud sounds, may sleep through vacuuming, and may not turn toward your voice or a clap.
Congenital deafness is often inherited or caused before birth by a poison or a virus, and white cats with blue eyes are sometimes affected [1].
Testing is more reliable after kittens are 3 to 4 weeks old, when sound responses become predictable [1].
Any sudden loss of vision or hearing, eye swelling, head tilt, or circling needs a veterinarian right away.

What Normal Kitten Senses Look Like

Kittens are not born with fully working eyes and ears. Their eyes open around 7 to 14 days, and vision keeps improving for several weeks. Hearing also comes online gradually. By about 3 to 4 weeks, most kittens start turning toward sounds in a predictable way, which is why hearing tests are more reliable after that age [1].

Normal kitten behavior includes tracking a toy with both eyes, following your finger, and reacting to a door closing or a bag rustling. Kittens also use their whiskers and paw pads to feel their way around, so a kitten with poor vision can still seem confident in a small, familiar space.

Signs of Vision Problems in a Kitten

Watch for these clues:

Bumping into walls, furniture, or door frames, especially in new rooms
Hesitating at the edge of a table, bed, or stair
Walking with a low, careful, or crouched posture
Not following a moving toy or a laser pointer with her eyes
Startling easily when you touch her or approach from the side
Holding her head at an odd angle or tilting it
Eyes that look cloudy, blue-gray, or different from each other
Squinting, pawing at the face, or keeping one eye closed

Some of these signs overlap with other problems. A kitten who limps or avoids movement may have a leg injury instead of a vision problem, so it helps to know what else to look for in Kitten Limping: When to See a Vet and When to Monitor.

Signs of Hearing Loss in a Kitten

Watch for these clues:

Sleeping through loud noises like a vacuum, blender, or dropped pan
Not turning toward your voice or a clap
Not waking when you call her name
Watching other kittens or cats for cues about when to eat or move
Playing more roughly or vocalizing more loudly than littermates
Not reacting to a doorbell, knock, or crinkling bag

A deaf kitten in a group can copy the other cats and go unnoticed [1]. That is one reason hearing loss is easy to miss at home.

Main Causes of Blindness and Deafness in Kittens

Cause	Typical clues	How urgent
Congenital (present at birth) deafness	White fur with blue eyes, no response to sound, normal otherwise	Routine visit, test after 3 to 4 weeks [1]
Inherited inner ear or balance problems	Deafness plus head tilt, wobbling, or poor balance	Same-day visit
Congenital blindness from infection or toxin before birth	Cloudy eyes, small eyes, poor tracking from the start	Same-day to routine visit
Eye infection, injury, or ulcer	Squinting, redness, discharge, one eye held shut	Same-day visit
Ear infection, wax buildup, or polyps	Head shaking, ear odor, discharge, scratching	Same-day visit
Cat-scratch disease	Sudden hearing loss on one side, swollen lymph nodes, fever	Same-day visit
Chronic pain or osteoarthritis	Stiff movement, less jumping, changes in sensory responses	Routine visit

Congenital deafness can be inherited, or it can result from damage before birth from a poisonous substance or a virus [1]. In some cases, changes in the first week of life cause the hearing loss [1]. Deafness can also be linked to inner ear and balance problems. One young cat with deafness and balance signs had a change in a gene called LHFPL5, which helps anchor the tiny structures inside the inner ear that turn sound and movement into nerve signals [2].

Some cat breeds have a known link between eye color, white markings, and hearing. In Maine Coon cats with dominant blue eyes, researchers found a change in the PAX3 gene linked to hearing loss and white spotting, similar to a human condition called Waardenburg syndrome [3]. This does not mean every blue-eyed white kitten will be deaf. It means certain coat and eye patterns raise the odds.

Acquired deafness develops later in life. It can come from a blocked ear canal due to chronic outer ear infection, middle or inner ear infections, too much earwax, or damage to the tiny ear bones [1]. Inflammatory polyps, which are growths, can also cause deafness [1]. Removing blockages or healing damaged tissue often restores hearing, and cats with bacterial ear infections may regain hearing after antibiotics [1].

Vision loss in kittens has many possible causes. These include infections before birth, injuries, eye ulcers, cataracts, and problems with the retina or optic nerve. Your veterinarian can sort out which one is present.

Red Flags That Mean Emergency Care Now

Call an emergency veterinary clinic right away if your kitten has any of these:

Sudden blindness, especially if it happened over hours or overnight
Sudden hearing loss, particularly with a swollen lymph node, fever, or a recent scratch or bite [4]
A head tilt, circling, falling, or rolling, which can point to inner ear or brain problems [2]
One or both eyes bulging, bleeding, or swelling shut
A cloudy or white eye that appeared suddenly
Severe pain signs, such as crying, hiding, or refusing to be touched near the head
Not eating or drinking, or showing signs of dehydration

Dehydration can make any kitten worse quickly. Learn the warning signs in Cat Dehydration Symptoms: How to Tell and What to Do.

Safe At-Home Checks You Can Do

These tests are not a diagnosis. They help you gather information to share with your veterinarian.

Vision Checks

Cotton ball test: Drop a cotton ball in front of your kitten and watch her eyes. A kitten with vision may track the movement. A blind kitten may not.
Hand wave test: Wave your hand slowly near her face without touching her or moving air toward her eyes. Watch for a blink or head turn.
Obstacle course: Set up soft pillows in a safe room and see if she avoids them. Do this only on carpet, never near stairs.
Light response: In a dim room, shine a small flashlight to the side of her face and watch the pupils. Do not shine it directly into her eyes.

Hearing Checks

Squeaky toy test: Squeak a toy behind her while she is awake and looking away. Watch for an ear twitch or head turn.
Clap test: Clap once from a few feet away. A hearing kitten usually reacts.
Name test: Say her name in a normal voice. A deaf kitten will not turn, even when you are close.
Vacuum test: Notice whether she wakes or reacts to a vacuum in the next room.

Do not test a sleeping kitten. A sleeping cat may not respond to sound even with normal hearing. Also avoid testing near stairs, tables, or other hazards.

What the Veterinarian Will Check

Your veterinarian will start with a full physical exam, including the eyes, ears, and nervous system. They will check the pupils, look for cloudiness or ulcers, and examine the ear canals for wax, discharge, polyps, or infection.

For hearing, a brainstem auditory evoked response test, often called a BAER test, is the most reliable tool. This test measures the brain's response to clicks or tones and can detect deafness in one ear, which is very hard to catch at home [1]. A BAER test can also show a reduced or absent response in kittens with inherited hearing loss [3].

For vision, your veterinarian may check the pupillary light reflex, the menace response (a blink when a hand moves toward the eye), and how well your kitten follows a moving object. If needed, they may refer you to a veterinary ophthalmologist for a detailed eye exam, including the retina and optic nerve.

Your veterinarian may also run blood tests, check for infection, or recommend imaging if they suspect a problem inside the ear or brain. If your kitten has other health issues, such as urinary problems, those need attention too. See What Are The Signs That My Cat Has A Urinary Tract Infection.

How to Keep a Blind or Deaf Kitten Safe

A few changes make a big difference.

Keep food, water, and litter box in the same spots.
Block stairs with baby gates until your kitten learns the layout.
Pad sharp corners and remove clutter from walkways.
Talk to a deaf kitten before you touch her, or tap the floor so she feels the vibration.
Approach a blind kitten from the front and let her sniff your hand first.
Use a leash and harness outdoors. Deaf or partially deaf cats should only go outside on a leash for safety [1].
Keep the environment calm and predictable.

Many deaf or partially deaf cats adapt well, and blind kittens often learn their home layout quickly [1]. Your kitten can still have a good quality of life with a few adjustments.

Prevention and Monitoring

You cannot prevent inherited deafness or blindness, but you can lower some risks.

Keep your kitten indoors and away from toxins, chemicals, and unsafe plants.
Treat ear infections early. Chronic outer ear infections, middle or inner ear infections, and wax buildup can all cause hearing loss [1].
Keep up with vaccines and parasite prevention.
Watch for changes in how your kitten responds to sound or light.
If you have a white kitten with blue eyes, ask your veterinarian about hearing testing after 3 to 4 weeks [1].
For older cats, watch for gradual sensory decline. Vision and hearing loss are common in aging cats and are often mistaken for normal aging or cognitive problems [5].

If your cat is older and slowing down, some of that may be pain instead of sensory loss. Learn more in Cat Kidney Disease: How to Tell If Your Cat Is in Pain.

Limitations and When to Contact a Veterinarian

At-home tests cannot confirm blindness or deafness. A kitten can pass a simple test and still have partial vision or hearing loss. One-sided deafness is especially hard to detect without a BAER test [1].

Contact your veterinarian the same day if your kitten has sudden vision or hearing changes, eye redness or discharge, ear odor or discharge, head shaking, or a new head tilt. Go to an emergency clinic now if your kitten is circling, falling, rolling, having trouble standing, or if an eye is bulging, bleeding, or swollen shut.

Schedule a routine visit if you notice a slow change over weeks, such as less interest in toys, more sleeping, or not coming when called. If your kitten has a known risk factor, such as white fur with blue eyes, ask about testing once she is old enough [1].

Every kitten is different. Your veterinarian needs to examine your kitten to give you a diagnosis and a plan.

Frequently Asked Questions

Can a kitten be born blind?

Yes, some kittens are born blind due to problems that happen before birth, such as infections or toxins. Others are born with eye structures that did not form normally. A veterinarian can often tell the difference during an exam.

Will my deaf kitten ever hear again?

It depends on the cause. Congenital deafness has no treatment, but acquired deafness from wax, infection, or polyps sometimes improves when the blockage is removed or the infection is treated [1]. Your veterinarian can give you a better idea after an exam.

Is it true that all white cats with blue eyes are deaf?

No. White fur and blue eyes raise the risk, and some of these cats are deaf, but not all of them are [1]. A hearing test is the only way to know for sure.

Can a kitten lose hearing after a cat scratch?

It is possible. Cat-scratch disease has been linked to sudden hearing loss on one side in people, and the connection is underrecognized [4]. If your kitten has a scratch, swollen lymph node, fever, or sudden hearing change, see a veterinarian right away.

Can I train a blind kitten?

Yes. Blind kittens learn daily routines and can be trained with voice cues, scent, and touch. Keep furniture in the same place and use a consistent word for things like meals and play. Ask your veterinarian about a referral to a veterinary behaviorist if you need extra help.

References

Deafness in Cats - Cat Owners. Merck Veterinary Manual.
LHFPL5 splice site variant in a cat with deafness and vestibular dysfunction. Animal genetics, 2025.
PAX3 haploinsufficiency in Maine Coon cats with dominant blue eyes and hearing loss resembling the human Waardenburg syndrome. G3 (Bethesda, Md.), 2024.
Cat-Scratch Disease Associated with Acute Hearing Loss, Israel. Emerging infectious diseases, 2026.
Sensory Decline: Real-World Tactics for Managing Vision and Hearing Loss. The Veterinary clinics of North America. Small animal practice, 2026.