Get

In Your Inbox

Catster is reader-supported. When you buy via links on our site, we may earn an affiliate commission at no cost to you. Learn more.

Sudden Blindness in Cats: 4 Vet Approved Possible Causes and What to Do

Share

Portrait of a blind tabby cat

Cats are known for having great peripheral and night vision. They spot things like mice and flies much easier than we humans can. In general, a cat’s eyesight should stay healthy and strong throughout their life. However, things can happen and problems can arise that can threaten a cat’s eyesight.

Gradual eyesight loss is more common than sudden blindness in cats, but the latter is possible and does happen. There are many different reasons that a cat might suddenly go blind. Here are four possible causes of sudden blindness in cats that every cat owner should be aware of.

divider 2 cats

The 4 Causes for Sudden Blindness in Cats

1. Head Trauma

A traumatic injury to your cat’s head can be the cause of sudden blindness. A serious blow to the head can cause blindness in different ways, for example brain trauma or eye trauma. Fortunately, if caught early, the problem can be reversed with treatments, and your cat may be able to see again. It is usually obvious if your cat has sustained a head trauma as there may be other injuries or signs. Knowing the signs and symptoms of vision loss will also help you identify sight loss as a problem and get your cat to a vet before it’s too late for treatment. Signs to look for, especially after your cat gets into a fight or is hit on the head, include:

  • Dilated pupils
  • Reluctance to move around
  • Wandering aimlessly
  • Bumping into objects

If you notice any signs of vision problems, it’s important to schedule a checkup as soon as possible and take steps to ensure that your kitty cannot get hurt while trying to get around the house.

What to Do About It

Typically, specialist care or surgery is required in head trauma cases and the treatment will depend on the injury sustained. Eyesight regeneration is not guaranteed, but the sooner treatment takes place, the better chance that eyesight will return.


2. High Blood Pressure

High blood pressure is a problem that can cause retinal detachment. This medical condition can cause the blood vessels in the retina to become damaged and can eventually make the retina detach. If your cat has high blood pressure that goes unchecked, there is a good chance that retinal detachment will happen at some point. Therefore, it is important to have your feline family member checked for high blood pressure regularly, especially as they get older.

What to Do About It

No matter the reason for retinal detachment, including high blood pressure, surgery may be the only treatment available that can help your cat regain their eyesight. Medications to reduce the blood pressure and treat the underlying disease, such as kidney failure, may also be needed. The best course of action is to be proactive and take steps to avoid the possibility of your cat developing high blood pressure. If the condition does develop, proper management should minimize the risk of retinal detachment.


3. Glaucoma

Glaucoma is a degenerative disease that causes excessive fluid to build up inside the eyeball. The fluid buildup can result in the eyeball hardening. When this happens, the retinal tissue starts to degenerate and can no longer perform properly. Therefore, eyesight becomes compromised, and a cat with this problem might wake up one day to find that they can no longer see at all.

What to Do About It

If left unchecked, glaucoma can cause irreversible vision loss and considerable discomfort. If the glaucoma is caught early enough, treatments can be utilized to reduce the fluid buildup in the eyeball and help reduce any lost vision. Long-term medication therapy may be required.

cleaning persian chinchilla cat's eyes with cotton pad
Image Credit: catinsyrup, Shutterstock

4. Tumors

If your cat suddenly loses their eyesight and a veterinarian cannot find an obvious cause, they will likely want to do a few tests to check for tumor growth within and around the eyes. Tumors typically result in slow vision loss, and it usually starts in just one eye. However, your cat may not show signs of vision loss until their vision is completely gone.

What to Do About It

Once a tumor is detected, there are a few treatment options that a veterinarian may suggest. It depends on the type of tumor, position, and patient factors such as age.

divider 2 cats

Conclusion

It can feel overwhelming to one day realize that your cat can no longer see anything. It’s important not to panic, but to schedule a visit with a veterinarian as soon as possible. Keep your kitty in a safe space that is familiar to them until you can see a vet and get expert guidance and advice.


Featured Image Credit: Mahlebashieva, Shutterstock

Want content like this delivered to you?

Sign Up For Our Newsletter

News, insights, expert advice, and everything cat

* By submitting, you agree to our Terms & Conditions and Privacy & Cookies Policy.




How useful was this post?

Click on a star to rate (you can leave written feedback after clicking submit)

Help us improve Catster for pet parents!

Your feedback really matters.

What did you like about this post? Also how can we improve it?

Join the conversation

Leave a Reply

You’re very welcome to leave a comment or question. Please know that all comments must meet our community guidelines, and your email address will NOT be published. Let’s have a positive and constructive conversation.


Catster's Digital Magazine is Back!

Vet-approved health & behavior advice

Real cat stories & community features

When a Cat Becomes a Water Fountain – Why Cats Vomit After Drinking

Seeing a cat drink water and then promptly bring it back up can be confusing. Sometimes the explanation is fairly simple, particularly if...

Chatting About Sleeping Positions, Loafing & Cats in Tubes | Chatty Cattys, Episode 33

In this episode of Catster’s Chatty Cattys podcast, Dr. Karyn and Nicole dive deep into the fascinating world of feline sleep behaviors. From...

The Bite Stuff: The Truth Behind a Cat’s Sudden Nip

A cat bite that seems to come out of nowhere is one of the more confusing things a cat owner deals with. Everything...

Your Cat’s Purr Proves They’re One of a Kind

There are few sounds more comforting to a cat parent than the familiar rumble of a purring cat. You probably know your own...

More related

How Many Treats Can I Give a Cat Per Day? Vet-Approved Quantity & FAQ

Cats love treats, and many owners love giving their cats treats. Some cats become completely unmanageable if you do not give them treats....

How Does Cat Allergy Testing Work? Vet-Reviewed Test Types, Signs & FAQ

Whether your cat is displaying signs of allergies or you just want to get ahead of things, you might wonder how exactly allergy...

9 Best Cat Litters for Kittens (2026) – Reviews & Top Picks

Bringing home a fluffy new kitten is an exciting and memorable time. While you might have picked up all sorts of toys and...

Is Baby’s Breath Toxic to Cats? Vet-Reviewed Houseplants Examined

Baby’s breath is an extremely common flower in arrangements. The small, white flowers are especially useful at bringing out the colors of other...

Keep reading

What Essential Oils Do Cats Hate – The 7 Worst Options (Vet Reviewed)

It’s generally recommended for cat owners to keep their cats away from essential oils. Essential oils can be extremely harmful to cats because they contain very high concentrations of chemicals that are toxic to them. Most cats aren’t fans of...

black and silver portable speaker beside green leaves

How to Cool a Cat Down Fast: 10 Vet-Verified Ways to Avoid Heat Stroke

This article has been reviewed by a qualified veterinarian using information available at the time of review. The knowledge of feline medicine is continually evolving. This article is not intended to replace consultation with a veterinarian for your specific pet....

Gray persian cat is licking ice to cool off

Can Cats Eat Pomegranate? Vet-Reviewed Facts & FAQ

One of the fun parts of owning a cat is giving them treats now and again. Though we stick with cat treats most of the time, sometimes it’s tempting to give them a bite of our food. But how healthy...

Can Cats Eat Pomegranate

Can Cats Eat Quail Eggs? Vet-Approved Nutritional Benefits & Facts

As obligate carnivores, it’s no wonder that cats absolutely love any product that comes from an animal, including dairy! Of course, that doesn’t necessarily mean they can have these products, but they certainly will be attracted to them. You might...

Can Cats Eat Quail Eggs

Why Is My Cat Biting Me All of a Sudden? 8 Possible Reasons (Vet Verified)

If you’ve spent any amount of time around cats, you’ve probably experienced how fast they can go from purring in delight to digging their teeth into your unsuspecting hand. But why does my cat randomly bite me? While biting doesn’t...

tabby-cat-biting-the-hand-of-the-owner

Why Is My Cat’s Meow Suddenly Hoarse? 9 Vet-Verified Reasons

Cats are capable of making quite a few vocalizations. They meow, chatter, trill, purr, and hiss. All these sounds are unique ways that cats communicate with us and other animals (and sometimes, they’re just talking to themselves). But what if...

abyssinian-cat-meowing-at-the-sofa

Why Is My Cat Panting After Giving Birth? Vet Approved Facts & FAQ

Breeding your cat is a beautiful experience both for you and your cat. And while being pregnant is exciting, giving birth can be challenging for your furry friend, especially if she gives birth to multiple kittens. After giving birth, many...

fluffy cat pregnant give birth and new born baby kittens_iarecottonstudio_shutterstock

How Do Cats Communicate With Each Other? Vet-Verified Facts & Info

Most mammals, including cats, are able to communicate, although non-verbally. Cats have developed forms of inter-cat communication over the millennia; some are vocal, some are physical, and others are chemical. Cats do it well in whatever form of communication they...

two cats touching noses

Love Cats? So Do We! Join the Catster Community

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.




Sign up for the Catster Email Newsletter

Stay informed with expert pet care insights delivered straight to your inbox! Discover professional guidance on animal behavior, feeding tips, trusted product picks, and much more.