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Experienced and professional animal trainer provide their insights in answering this question :
A. This may be inflammation of the tear duct which may be blocked or conjunctivitis. He may require the ducts to be flushed or medicated drops by your vet if this does not improve, you can try flushing with plain nasal saline drops which might clean and flush them

How to Identify Common Pet Problems ?

Our sources include academic articles, blog posts, and personal essays from experienced pet care professionals :

Buphthalmia is the condition of bulging eyes in rabbits that is enlarged due to glaucoma. The more common exophthalmos designates a condition of an abnormal bulging of the eyes due to the eyeball getting pushed out of the socket from a tumor, abscess or pressure behind it.
Conjunctivitis is also called “pink eye.” Just as in humans, “pink eye” causes the bunny`s eye to turn pink or red. There are actually many reasons for conjunctivitis in your rabbit. Infections caused by Pasteurella multocida, Staphylococcus, and Treponema cuniculi are all common culprits.
Bacterial infections, including Treponema cuniculi (or rabbit syphilis), which can cause swollen eyelids. Conjunctivitis, a common disorder causing red eye that can result from allergies, bacterial or viral irritants; sometimes occurring as a side-effect of a respiratory tract infection.
Eye infections are a common problem in pet rabbits and often develop because of an underlying problem such as dental disease or an injury to the eye. Eye infections are often easy to spot because they cause red, painful, weepy eyes.
Conjunctivitis. Your rabbits` eyes can be vulnerable to bacterial infections. Common infections include conjunctivitis – also called `pink eye` – where the eyes look red and sore with fluid around the rim. For this, your vet will prescribe antibiotic cream or drops.
Healthy rabbit eyes are clear and bright. If you pull up or down on the eyelid, the eye tissue should be pink, not red or very pale. Red, inflamed eye tissue and/or discharge from the eyes could be a sign of infection. Very pale tissue can also be a sign of illness.
Cherry eye can occur from trauma to the eye, damage from a foreign body in the eye, or from a tumor, but the most common cause is an anatomical abnormality ligament that is supposed to hold the nictitans gland in place.
Your rabbit may be blind or partially sighted if they regularly bump into things or if they`re easily startled by sounds or approaching objects. They may also make slow, cautious movements and become nervous in new places. Many visually impaired rabbits tend to stay close to the wall when exploring.
Findings associated with glaucoma in rabbits include elevated intraocular pressure (IOP), corneal edema, loss of vision, optic nerve head cupping, and progressive buphthalmia.
`Dacryocystitis` is inflammation of these ducts, a condition that usually leads to them becoming blocked and/or infected. Dacryocystitis can be caused by: Dental disease – this is by far the most common cause of dacryocystitis in rabbits because their tear ducts sit so close to their teeth.
What are the signs of blindness? The rabbit`s eye/s may appear cloudy or hazy, red, swollen or discharging. Some eye conditions can be painful, so the rabbit may be scratching the eyes making them sore.
A small amount of local anaesthetic is placed into your rabbit`s eye. A small catheter is then placed into the tear duct and saline is flushed through until the duct blockage is cleared. In most cases this procedure is well tolerated by the rabbit and can be performed without sedation.
Can you use eye drops on rabbits? You should never use human eye drops on a rabbit`s eyes. These can cause stinging, irritation, and potential damage to your rabbit eye and cornea. If your rabbit does require their eyes to be flushed (consult a veterinarian first), you can use special pet eye drops instead.
When your rabbits are happy, you might notice them do a little `binky`. This is when they hop in the air, twist a little bit, then land back on the ground. Nose twitching. Happy and content rabbits will be constantly wiggling and twitching their noses, whether they`re bouncing about or relaxing.
We often get asked, “Why do some rabbits have red eyes?” Well, the reason is really cool – their eyes actually have NO color at all! Their iris is clear, like a window, which allows us to see into their eye, and the red color is created by the blood vessels in the back!
You Notice Changes in Your Rabbit`s Gait or Posture

Abnormalities or changes in their gait, agility, or general posture should raise a red flag. Stumbling or staggering may be coupled with head tilt (or “wry neck”) where a rabbit will hold their head cocked to one side.

An untreated “cherry eye” will have decreased tear production and possibly incomplete closure of the eye. This can cause eye infections and dry eye. The dry eye can be severe enough to cause a lot of pain, pigmentation of the eye and blindness. The treatment for a prolapsed nictitans gland is often surgical.
The cherry eye (prolapsed third eyelid gland) should never be surgically removed because it predisposes the animal to a dry eye condition that will need chronic medications and/or surgery. Cherry eye is best treated in the early stages.
Foraquick solution, application of a small amount of Terramycin ophthalmic ointment to the surface of the cornea (do not let the applicator tip touch the eye) twice a day for seven days is a very effective treatment.
It is important that you understand all the requirements for caring for a rabbit before you buy one. Rabbits generally live for 5 to 8 years depending on their environment and breed, but they can live for as long as 12 years. If you decide to purchase a rabbit, make sure you are prepared to care for them that long.
A cataract appears as a slightly hazy to white opacity within the pupil of the eye. This is caused by a change in the nature of the lens of the eye. The lens can often appear `crystallized` on close inspection. As they progress cataracts cause a loss of vision, which may be gradual or sudden in onset.
Hazy or blurred vision: Distorted or blurry vision accompanied by other symptoms. Eye pain: Severe pain around your eyes & head. Eye redness: Red eyes caused by increased eye pressure. Colored halos around lights: Colored bright circles forming around light sources.

Relevant Questions and Answers :

the most relevant questions and answers related to your specific issue

Q. My rabbit’s eyes often look strange, like the pink at the front (tear ducts) bulge out. He is about 7 years old and has had this issue for months.
ANSWER : A. This may be inflammation of the tear duct which may be blocked or conjunctivitis. He may require the ducts to be flushed or medicated drops by your vet if this does not improve, you can try flushing with plain nasal saline drops which might clean and flush them

Q. Infection in gums causing Brown drainage from eyes and stained fur where ever he bites. Antibiotics were used to clear it up a year ago.
ANSWER : A. It’s kind of unlikely that an infection in the gums is causing brown drainage in the eyes. There is a substance called porphyrin that’s in both tears and saliva. When white dogs like Bichons have excessive tearing, their fur is often stained under their eyes. You’ll see the same thing if they lick themselves excessively.

As far as the tear staining goes sometimes it’s effective to try to open up the tear ducts with a canula (a hollow needle) while under anesthesia. This prevents the tears from spilling onto the fur. There’s also a product called Angel Eyes that contains low doses of the antibiotic metronidazole, and for some reason that seems to decrease tear staining as well.

As for the chewing you need to talk to your vet about why he’s chewing – he may have fleas, mites/mange, or allergies.

Q. What can be given to dogs to stop the brown draining around dogs eyes? I was told tetracycline would work.
Thanks
ANSWER : A. Eye leakage is normal in some breeds of dogs, especially those that are more “bug-eyed” types. This eye leakage is just normal tears coming from the eye which can stain lighter colored coats. Unless there is an infection it does not need to be treated with antibiotics. Signs of infection usually include drainage that is thick or goopy and is yellow or greenish in color. Dogs with infections may also want to keep the eye closed, or may paw and scratch at it.

For plain tear-staining. Tear-stain wipes can be used around the eyes to remove the stain and bring the coat back to natural color. If infection is suspected, it is best to have your vet take a look at the eye prior to placing any medications in it.

Q. Weak, discharge from eyes, swelling on right eye, does not want to open eyes. What is wrong?
ANSWER : A. If the discharge from the eye is green or yellow in color, it can indicate a secondary infection. Swollen eyes can be caused by a number of things ranging from allergies to infections, to injury to the eye itself or surrounding areas.

It is best to have your pet’s eye examined by your local vet. They will most likely wish to place a stain in the eye that can check for damage such as cuts or scratches. An ointment can then be given to help reduce inflammation, pain and take care of infection.

Until you can get to the vet, be sure to not let your pet scratch or paw at their eye as this can make things worse. You can also use a warm wet washcloth to gently remove any debris and allow the eye to open some, providing relief. However, if symptoms worsen, or the swelling travels to the face, head or neck, it may indicate a serious allergic reaction which should be treated immediately.

Q. My pet is suffering eyes discharge, what should I do?
ANSWER : A. Mucus, yellow-green pus, or a watery eye discharge can all be signs of conjunctivitis, which is inflammation of the lining of your dog’s eye.

There is a wide range of causes for conjunctivitis, from allergies, injury, birth defects, and tear duct problems, to foreign bodies, dry eye syndrome, infections or even tumors.

Other signs of conjunctivitis include excessive blinking or keeping the eye closed, squinting and pawing at the eyes.

Treatment of this condition depends on the underlying cause. In most of the cases cleaning, soothing the eye and applying antibiotics eye drops suffice but is some instances further investigation is required to establish the cause of the excessive eye discharge, and this should be performed by a veterinarian.

Q. I was told by my vet that my dogs cherry eye was caused by something hitting his eye when he was poking around under a bush. I was told surgery needed
ANSWER : A. Prolapsed gland of the eyelid refers to a pink mass protruding from the animal’s eyelid; it is also called a “cherry eye.” Normally, the gland is anchored by an attachment made up of fibrous material. The most common sign of “cherry eye” is an oval mass protruding from the dogs’s third eyelid. It can occur in one or both eyes, and may be accompanied by swelling and irritation. He may have acquired it by getting an injury to his eye but this isn’t the case sometimes. Sometimes there is a weakness in the fibrous attachment.

The veterinarian will review the mass in the dog’s third eyelid and determine if there is an underlying cause for the condition. The diagnosis of the prolapsed gland could be scrolled or everted cartilage in the third eyelid, abnormal cells in the third eye, or a prolapse of fat in the dog’s eye.

Treatment often includes surgical replacement of the gland in the dog’s eye, or removal of the entire gland if the condition is severe. Conversely, if medications are recommended, they are typically topical anti-inflammatory drugs that are effective in reducing swelling.

Q. Yellow lab F, approx 9-10 yrs. Sudden onset of extreme redness in one eye, now seems to have spread to other over 24-48 hrs. Healty, active, good app.
ANSWER : A. This could be a bacterial conjunctivitis. Dogs can pass these infections around, just like people can. The fact that it started in one eye and moved to the other suggests infection, but I can’t rule out something more serious like glaucoma. I feel like anytime a dog’s eye gets acutely red like this it’s cause for alarm, and needs to be checked out as soon as possible. Like I said above, it’s likely a simple eye infection, but get it checked out to be sure.

Read Full Q/A … : Vetinfo

Q. My 14 week old English bulldog has what looks like a small pimple on the outside corner of her eye . It appears to be completely external. What to do.
ANSWER : A. If the pimple is not bothersome it may be best to just keep an eye on it and watch for any changes such as reddening, growth, or itching/pain to your pup. Puppies can sometimes get strange bumps that may go away over time. If the pimple grows in size, becomes very red, affects the eye itself or is bothersome to your pup then it is best to have the vet take a look. They can safely remove the growth if needed, and may also recommend additional treatments to protect the eye. If your pup is bothered, placing an Elizabethan (cone) collar on her to prevent scratching at and possibly hurting the eye is best until she can get into your vet.