Do you have a curious pup at home? If so, then you’ve probably seen their eyes roll back when they’re sleeping. It’s pretty adorable to watch—especially if your pup is snoozing contentedly in the afternoon sun—but it also likely leaves you with one burning question: why do dogs eyes roll back when they sleep?
Well, here’s some good news: we’ve got answers! In this article, we’ll explore what makes a dog’s eyes “roll away” while they catch up on some essential zzzs, so keep reading to find out more about this behavior.
Reasons Why Dogs Eyes Roll Back When They Sleep
1. Dreaming
When a dog falls asleep, their eyes may roll back in their head as they enter a state of deep relaxation and rest. This is often accompanied by a process called REM (rapid eye movement) sleep, which is characterized by rapid movements of the eyes behind closed lids.
During REM sleep, dogs experience a type of sleep that is similar to the dreaming stage in humans. In this state, the brain becomes more active, and the body becomes paralyzed, allowing the dog to experience vivid and sometimes strange dreams.
This is why you may notice your dog twitching, moving their paws, or making noises while they sleep – they are likely reacting to the events of their dream.
For example, let’s say your dog is dreaming about chasing a squirrel. During this dream, you may notice their eyes rolling back in their head, their paws moving as if they are running, and possibly even a growling or barking noise coming from their throat. This is all normal and simply a sign that your dog is experiencing a vivid dream.
2. Seizures
Seizures are abnormal electrical activity in the brain that can cause a variety of physical symptoms, including involuntary movements and changes in behavior. In some cases, dogs may experience a seizure while they are sleeping, and their eyes may roll back as a result.
According to veterinary experts, eyes rolling back in the head during sleep can be a sign of seizure activity in the brain. This can occur due to various neurological conditions such as epilepsy or brain tumors. If a dog’s eyes are rolling back during sleep, it is important to bring them to a veterinarian for evaluation. Seizures can be a serious medical condition that requires treatment.
3. Third Eyelid
The third eyelid, also known as the nictitating membrane, is a thin, transparent membrane located on the inner corner of a dog’s eye. It is not always visible, but it can be seen when the dog is relaxed or asleep. The third eyelid serves several important functions for dogs, including protecting the eye from debris, keeping it moist, and helping to keep the eye clean.
When a dog is sleeping, the third eyelid may become more prominent as the eye relaxes and the dog’s muscles slacken. This can cause the dog’s eyes to appear as if they are rolling back into their head. This is a normal and natural reflex that occurs as the dog’s body enters a state of rest and relaxation.
4. Injury
Dogs’ eyes could roll back while they sleep due to injury or other medical issues. If you notice this happening with your dog, it’s important to get them checked out by a veterinarian to ensure that they are healthy and receiving the proper treatment.
5. Nystagmus
Nystagmus is a condition in which the eyes make involuntary, rapid movements. This can occur when a dog is awake or asleep. It is often accompanied by dizziness, imbalance, and difficulty focusing on objects.
According to experts, nystagmus in dogs is often caused by vestibular disease, which is a problem with the balance center in the inner ear. This can be caused by inflammation, infection, or degeneration of the inner ear structures. While nystagmus in dogs is usually harmless, it is always a good idea to consult with a veterinarian if it is excessive or accompanied by other unusual symptoms.
6. Neurological Conditions
According to a study published in the Journal of Veterinary Behavior, dogs’ eyes rolling back during sleep is a neurological condition known as “eyelid closure myoclonus.” This condition is caused by involuntary muscle contractions that occur during the REM stage of sleep. If the condition is causing concern, it is recommended to consult with a veterinarian for proper diagnosis and treatment options.
7. Strabismus
Strabismus is a condition in which the eyes do not align properly, resulting in a misalignment of the visual axis. Dogs with strabismus may have a hard time keeping their eyes open when they sleep. As a result, their eyes may roll back in their sockets, leading to a characteristic closed-eye appearance when they are asleep. Treatment for strabismus may involve corrective eyewear, surgery, or medication.
8. Low Blood Pressure
When a dog falls asleep, their blood pressure naturally decreases. This is a normal physiological process that occurs in all mammals as they sleep. As the blood pressure decreases, the muscles in the face, including those around the eyes, relax. This can cause the eyes to roll back slightly in their sockets.
9. Cherry Eye
Cherry eye is a condition that affects the nictitating membrane, also known as the third eyelid, in dogs. It can cause a variety of symptoms, including redness and swelling of the eye, increased tearing, and difficulty closing the eye. Cherry eye is often caused by a congenital defect or weakness in the gland that leads to its prolapse. Treatment may involve surgery or medication.
10. Strokes
If a dog’s eyes roll back excessively or if it appears that they are having a seizure, it could be a sign of a stroke. Strokes can be treated with medications and other therapies, but early intervention is key to improving the chances of recovery.
Frequently Asked Questions
Here are some frequently asked questions about dogs’ eyes rolling back when they sleep:
Are dogs dreaming when their eyes roll back?
Yes, dogs experience vivid dreams during REM sleep, which can cause their eyes to roll back.Should I be concerned if my dog’s eyes roll back when they sleep?
In general, it is not a cause for concern unless the dog’s eyes roll back excessively or if the dog is experiencing other unusual symptoms. However, if you are worried, it is always a good idea to consult with a veterinarian.Can seizures cause a dog’s eyes to roll back when they sleep?
Yes, seizures can cause a dog’s eyes to roll back when they sleep. If you suspect that your dog is experiencing seizures, it is important to bring them to a veterinarian for evaluation and treatment.What should I do if my dog’s eyes roll back when they sleep?
If your dog’s eyes roll back when they sleep and you are concerned, it is best to consult with a veterinarian. They can examine your dog and provide appropriate recommendations or treatment if necessary.Can injury cause a dog’s eyes to roll back when they sleep?
Yes, injury or other medical issues can cause a dog’s eyes to roll back when they sleep. It is important to get them checked out by a veterinarian to ensure they are healthy and receiving the proper treatment.
Conclusion
In conclusion, dogs’ eyes may roll back when they sleep due to various reasons such as dreaming, seizures, the third eyelid, injury, nystagmus, neurological conditions, strabismus, low blood pressure, cherry eye, or strokes. While this behavior is usually normal and harmless, it’s always a good idea to consult with a veterinarian if you have concerns. Remember to provide your furry friend with a comfortable sleeping environment and ensure their overall well-being. For more information about dogs and their behaviors, visit Pawsoha.