ormal.

Experienced and professional animal trainer provide their insights in answering this question :
A. You’re describing something called “anisocoria”, which means unequal pupil sizes. Sometimes as cats age their iris (the colored part of the eye) atropies and we’ll see one pupil take on a slightly different shape or appearance. But there are some concerning problems that can cause anisocoria, including certain inflammatory diseases, diseases of the neurologic system (brain or nerves controlling pupil size) and exposure to some drugs (unlikely in this case since you mentioned that he hasn’t been given any drugs).

I’m glad that he seems normal otherwise, but see a vet so that the eyes can be examined and you can make sure this is not a serious condition.

How to Identify Common Pet Problems ?

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Diseases inside and outside the eye can lead to anisocoria in cats. Pupils can abnormally dilate due to conditions like glaucoma or damage to the retina in the back of the eye. The pupil may also constrict inappropriately due to inflammation in the eye or painful conditions like corneal ulcers.
What eye changes may be present in a sick cat? Droopy eyelids, discharges that are green, yellow, or white, squinting, pupils that are dilated or constricted, or anisocoria (one pupil dilated and the other constricted are all signs that something is amiss.
There is no specific treatment for eye dilation in cats. Treatment depends on the underlying cause. Your vet might recommend pain relief (eye drops or oral meds), medication to control the blood pressure (usually pills), a diet change (for kidney disease), or even an operation (in some cases of hyperthyroidism).
Immediate medical care, however, should be obtained for pupils that remain dilated, or pupils that are unequal in size, as this can be a sign of a serious condition affecting the brain, including stroke, internal bleeding, or tumor.
The pupils of an individual are usually very symmetrical in appearance. In certain instances the pupils may vary in size. Occasionally, differing pupil size is inherited and there is no underlying disorder. Varying pupil size may also be due to infection, tumors, disease or trauma.
Reduced appetite. Lethargy. Decreased interest in positive things like playing, social interaction and exploring outside. Being withdrawn and hiding away.
Cats` eyes naturally get big when they sense danger, or when they are pretending to “hunt” or attack you from afar. It helps them see better, and let in more light so they can zone in on their target, whether it be a bird, your foot, or anything else that caught your cat`s eye.
What causes anisocoria? Anisocoria is a sign of a disease of condition, therefore there can be several different causes, including: Corneal injury such as an ulcer. Disease or injury to the brain or to the nerves running to the affected eye, such as Horner`s syndrome.
Causes of Unequal Pupil Size in Cats

Concussion (bleeding and swelling of the brain from head trauma) Injury to optic nerves. Neurological disorders (such as Horner`s Syndrome) Oculomotor nerve paralysis (damage to the nerve controlling eye movement)

Benign episodic unilateral mydriasis (BEUM) is a temporary condition that creates a dilated pupil in only one eye. Often individuals with this condition will also experience a mild headache, eye pain, light sensitivity, and blurred vision during these episodes. In some cases BEUM also occurs during a migraine headache.
Why do the pupils dilate? Sometimes the pupils dilate without changes in lighting and are larger than usual; the medical term for it is mydriasis. There are different causes for mydriasis to occur. Neurological diseases: migraine, cerebrovascular accident or stroke, brain haemorrhage, tumours or infections.
Stimulation of the autonomic nervous system`s sympathetic branch, known for triggering “fight or flight” responses when the body is under stress, induces pupil dilation. Whereas stimulation of the parasympathetic system, known for “rest and digest” functions, causes constriction.
Holmes-Adie syndrome involves a pupil in one eye that is larger than the other and constricts slowly in bright light as well as the absence of deep tendon reflexes usually in the Achilles tendon (back of calf through heel bone).
But one of Bowie`s most unique traits was, and still is, the difference between his eyes. At first glance, it appeared his eyes were two different colors, but upon closer inspection, his pupils were actually two different sizes. This condition is actually called anisocoria, and it`s not as uncommon as you might think.
If your cat sleeps on your bed, he may choose a position that lets him see out your bedroom door more easily. If he`s curled up in a ball under your bed or in a quiet corner, then he may be hiding. Cats who sleep under the covers might love being close to you, or they might be hiding to feel safer.
How different is it for cats? It is widely accepted that animals also feel pain in the same way that we do, being both a sensory and emotional experience in response to damage, or potential damage to the body.
Growling, hissing or spitting indicates a cat who is annoyed, frightened, angry or aggressive. Leave this cat alone. A yowl or howl (they sound like loud, drawn-out meows) tells you your cat is in some kind of distress—stuck in a closet, looking for you or in pain.
It appears that cats can sense human moods as well as depression. Cats are observant and intuitive, and this allows them to understand emotional cues from humans. So when you are depressed, they can sense that too. In particular, cats may come in closer proximity when their fur parents are depressed.
Symptoms of Shock in Cats

Pale or discolored gums. Confusion or disorientation. Lethargy and general weakness. Vomiting and/or diarrhea.

Other signs of glaucoma in cats can include partially closed eye, pawing at eyes, watery discharge, obvious swelling or bulging of the eyeball, bloodshot eye, cloudiness of eye, dilated pupil or blindness.
Cat eye syndrome (CES), also known as Schmid-Fraccaro syndrome, is a very rare genetic disorder that`s usually evident at birth. It gets its name from the distinctive eye pattern present in about half of affected individuals.
Simple anisocoria

This is a benign condition that causes the pupils to differ in size, usually by up to one millimeter in diameter, without affecting the pupils` response to light. This condition can be intermittent or constant, and may even go away on its own without medical intervention.

Unequal pupils (anisocoria) are due to the efferent (motor) system, which includes CNIII, somatic and parasympathetic components, sympathetic nerves originating in the cervical spine, and the smooth muscle of the iris.
Some medications and illegal drugs can cause your pupils to change size in one or both eyes. Medications that can affect the way your pupils look include: Amphetamines. Anticholinergics.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. Why do cats meow?
ANSWER : A. Cat parents often wish they could better understand what their favorite feline friends want or desire. A cat’s meow can be interpreted in many different ways and can indicate an array of feelings and needs. Here are some of the most common reasons for your cat’s vocalizations:

1. Greeting- Many cats will meow as a greeting when you enter your home or walk into a room. Cats will also meow at another cat or animal in the household to extend a hello and acknowledge the other animal’s presence.

2. Attention – An exuberant meow followed by leg rubbing or another attention seeking behavior may indicate your cat is looking for some quality time spent together. Some petting or rubbing behind the ears may be in order.

3. Hunger – A meowing cat is often a hungry cat. This is one of the most common reasons for a cat to vocalize to their owners. A cat will meow to get your attention at feeding times or even when they want extra food.

4. Sickness – A sick or hurt cat may begin to meow excessively, warranting a visit to the veterinarian. There are numerous reasons for a cat in distress to meow—whether it is related to an upset stomach, an injured leg or a urinary blockage. These meows should be carefully investigated.

5. Entering or leaving – Most cats will vocalize when they want to be let in or out of a room. You may notice when you are in the bathroom or behind the closed door of a room that your cat begins to meow, scratches at the door, and often reaches its paw under the door. This is a clear indication that the cat wants to be where you are.

6. Angry – An agitated cat may meow to warn their owner or another household pet that they are upset and would like to be left alone. This angry meow may increase in sound volume as the cat becomes more stressed or agitated. Often a cat will exhibit this type of meow at the veterinary office when they are unhappy with their examination or restraint.

Each feline is different and so are their vocalizations. Learn to understand the variety of meows your cat uses on a daily basis. This will help you develop a better relationship with your cat and help them live a more trusting and happier life.

Q. I have a 6 yr, old, neutered, male tabby cat. His left eye is dilated and his right eye is normal. No recent meds. He is eating and acting normal.
ANSWER : A. You’re describing something called “anisocoria”, which means unequal pupil sizes. Sometimes as cats age their iris (the colored part of the eye) atropies and we’ll see one pupil take on a slightly different shape or appearance. But there are some concerning problems that can cause anisocoria, including certain inflammatory diseases, diseases of the neurologic system (brain or nerves controlling pupil size) and exposure to some drugs (unlikely in this case since you mentioned that he hasn’t been given any drugs).

I’m glad that he seems normal otherwise, but see a vet so that the eyes can be examined and you can make sure this is not a serious condition.

Q. My cat continues to scratch on furniture and carpets. He has plenty of scratching posts around the house. Please help!
ANSWER : A. Scratching is a natural behavior in cats that can be frequently frustrating for pet owners who want to keep their furniture from being shredded on a constant basis. The texture of furniture and carpet is very appealing to cats and this why they frequently choose to spend their time on this activity as opposed to playing with their own cat toys. Here are some suggestions to help curb this unwanted behavior:

1. Purchase a cat scratching post or cat tree that is covered in carpeted or textured material. Place it in an appealing spot that your cat would be inclined to spend time (eg. in the sun). You can also place catnip on the scratching post or cat tree to make your cat even more interested in the new object.

2. You can utilize double sided tape on the ends of the furniture because you cat will not like the sticky feeling and will learn to not scratch in that region. Use the tape that has a lighter adhesive in order to prevent any permanent damage. Other materials, such as aluminum foil or bubble wrap can also be placed on the furniture to discourage the scratching.

3. Keep nails trimmed short by either learning to do this on your own at home or using a veterinary technician, or groomer. Nails can usually be trimmed every 6-8 weeks.

4. Redirect the unwanted behavior. If your cat begins scratching, use a favorite or new toy to distract the cat from the scratching. Give your cat positive praise for not scratching.

5. As a last resort you can use a spray bottle full of water to spritz your cat when he or she is scratching inappropriately at your furniture. Generally, cats do not like water and this will discourage them from continuing the behavior.

Have patience with your cat because it can takes time to understand this is an unwanted behavior and that furniture is not another toy for them to use. You can always consult your veterinary or veterinary behaviorist to help with ideas or further solutions to this problem.

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Q. Cat was vomiting for a few days. Took to vet, received anti-nausea medicine 2 days ago. Drinks and no longer vomits, but won’t eat. I’m worried
ANSWER : A. If your cat has been feeling nauseated, it is possible that the nausea, or just general illness is making him want to eat less. However, you can try enticing him to eat with a few tricks geared to cats.

Warming up wet foods or even bland people foods such as plain chicken or boiled hamburger can make food more interesting to cats. Cats tend to go for aromatic rather than flavorful foods, so making the food as “smelly” as possible may encourage your cat to take a bite. Bland foods are also good for helping to soothe upset stomachs, which may still be happening if your cat had recently had a vomiting episode.

However, if enticing your cat to eat does not work, or he continues to refuse to eat any food, it is best to contact your local veterinarian for more care and testing. Cats can become very ill if they refuse to eat for more than a few days, and finding the underlying cause can help your cat feel better.

Q. My cat started to pee outside the litter box. What should I do?
ANSWER : A. Inappropriate bathroom use in cats is often a behavioral problem rather than a medical problem, so the first step is to have him seen by your vet to eliminate any kind of illness or condition as a cause for his defecating outside the box.

Once medical issues are ruled out, it’s time to take a look at other explanations. Has there been a lot of activity that wasn’t normal? Were you away and your cat was left at home or boarded? Is the litterbox located in a busy area? Has anything happened recently in this area to make him reluctant to use it again? Is there another cat, pet, or person that is preventing him from getting to the box? Have you changed it from a hooded to an open box, or vice versa? Have you changed the brand of litter or kind? Or is there something about the spot he has chosen to use that is attracting him in some way? Cats dislike disturbances to their routine and may act out as a way of expressing their dissatisfaction.

The general rule of thumb is one litter box per cat in the household, plus one. That way each cat can have a place of their own to go in case the box is occupied or another cat has claimed it as territory. They should be scooped at least daily, if not more often and changed completely on a weekly basis, and washed with soap and water.

You can also offer one kind of litter in one box and another kind in another to see if there is a preference. I don’t recommend the crystal kind, since it makes a hissing sound when wet that can startle some cats and make them reluctant to use it again.

The litter boxes should be located in a quiet, low-traffic area so that the cat can use them in peace. Make sure other pets or people aren’t giving them a hard time around or in the litterbox. It may take some investigation and experimentation to find your cat’s preference and accommodate him so that everyone is satisfied with the situation.

Q. Our cat of six years has on two separate occasions has defecated on the living room rug and recently pee’d on the skirt of the Christmas tree.
ANSWER : A. Inappropriate elimination in cats is often a behavioral problem rather than a medical problem, so the first step is to have him seen by your vet to eliminate any kind of illness or condition as a cause for his eliminating outside the box.

If medical issues are ruled out, take a look at other reasons. Has there been a lot of unusual activity? Has you cat been left at home or boarded? Is the litterbox in a busy area? Has anything happened recently in this area to make him reluctant to use it again? Is there another cat, pet or person that is preventing him from getting to the box? Have you changed it from a hooded to an open box, or vice versa? Is it big enough? Have you changed the type or brand of litter? Is there something attractive about the spot he uses? Cats dislike disturbances to their routine and may act out to express their dissatisfaction.

The general rule is one litter box per cat in the household, plus one. That way each cat can have a place of their own to go in case the box is occupied or another cat has claimed it as territory. They should be scooped daily, if not more often and changed completely weekly, washed with soap and water only. You can offer one kind of litter in one box and another kind in another to see if there is a preference. I don’t recommend the crystals, it makes a hissing sound when wet that startles some cats and make them reluctant to use it again. The litter boxes should be located in a quiet, low-traffic area so that the cat can use them in peace. Make sure any other pets or people aren’t giving them a hard time around or in the litter box. It may take some investigation and experimentation to find your cat’s preference and accommodate him so that everyone is satisfied with the situation. And, when cleaning up pet accidents, don’t use any cleaner containing ammonia. This leaves behind a scent similar to urine.

Q. Male neutered cat [1 1/2 years old] has just started trying to spray everywhere around the house. Nothing is coming out. No recent changes.
ANSWER : A. Changes in urinary habits can be caused by a number of things, especially in neutered male cats. Attempting to urinate or have accidents in places other than the litter box can often be a sign of a urinary tract infection, or crystals and debris in the bladder causing problems. Pets may need to go more frequently, may dribble or urinate in small amounts more often, may have accidents or may have blood-tinged or cloudy urine.Infections are usually treated with medications and changes to the diet, however in some cases of large stones or crystals surgery may be needed.

Male cats can also experience urinary blockage. This is due to a unique anatomical part or the urethra that forms a U-shape before exiting the body in male cats. If a cat has crystals or other debris in the urine, it can block at this point preventing urine from being able to exit. Cats may attempt to urinate without producing anything, may become very vocal (indicating pain) or may have a hunched back, full abdomen or pain in the abdomen (protecting the very full bladder). Urinary blockage IS a medical emergency so if suspected, your vet or local emergency clinic should be contacted immediately. Treatment usually involves a hospital stay and catheterization of the bladder to remove the blockage and allow urine to drain followed by medications and a change in diet to prevent further problems.

It is best to try and collect a sample of urine and make an appointment for your cat if he has had a change in urinary habits. If you do suspect a blockage, then contact your vet ASAP is best.

Q. My cat is one year old. He has diarrhea, not eating last for one day. This problem is too with my other 2 cats and one is died.
ANSWER : A. His not eating is the most concerning for me. They cannot go more than a few days without eating or they risk liver damage. Your cat needs to be seen by your vet for an exam and bloodwork to determine the cause for your cat’s loss of appetite. Based on the findings, your vet will be able to give you a clearer picture of what is going on with your cat and be able to offer you treatment options.

Try enticing your pet to eat with beef or chicken baby food that does not contain onion or garlic powder. Onion and garlic causes anemia. Warm it in the microwave for a few seconds. Stir it with your finger first to make sure there are no hot spots and that it isn’t too hot. This makes it more aromatic and appealing to your pet. Wetting dry food or mixing wet food with low sodium chicken broth, also warmed, might entice your pet to eat. Some cats like to be petted while they eat, some want to be left alone. You’ll know your cat’s habits and be able to act accordingly.