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What is Corneal Dystrophy?
There is sometimes confusion between corneal dystrophy and corneal degradation, which are similar in clinical symptoms, but corneal degradation is not thought to be genetic. Many breeds are affected by corneal dystrophy. Unfortunately, the condition appears to affect each breed differently. In all dogs, corneal dystrophy is caused by a genetic disturbance in how fat is metabolized. The result is a white or gray clouding of the eye. It generally starts in one eye but always affects both. In most breeds, it does not cause discomfort or blindness. In a smaller list of breeds the disorder is more progressive and can lead to more severe complications.
Corneal dystrophy refers to the clouding of the cornea from an inherited condition.
Corneal Dystrophy Average Cost
From 561 quotes ranging from $200 - $500
Average Cost
$250
Symptoms of Corneal Dystrophy in Dogs
At the onset, corneal dystrophy usually appears as a white or grayish round “cloud” at the center of the eye. If ulcers are present the dog may give signs of irritated eyes, rubbing, and itching. The spots are usually round but sometimes donut shaped. Symptoms vary widely between breeds. The affliction can seemingly appear at any age,in as little as four months in Airedale Terriers and as late as thirteen years in Chihuahuas. In some breeds, the trait is thought to be sex linked.
- White or grayish cloud in the center of the eye
- Irritated eyes
Types
There are many types of corneal disease and degradation. However, corneal dystrophy itself has not been further classified. Dogs affected with a slower, less severe version of corneal dystrophy are often:
- Siberian Husky
- Samoyed
- Cocker Spaniel
- Beagle
- German Shepherd
- Pointer
- Bichon Frise
- Poodle
Dogs who experience a more aggressive version of corneal dystrophy are often:
- Shetland Sheepdog
- Airedale Terrier
- Boston Terrier
- Dachshund
- Chihuahua
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Causes of Corneal Dystrophy in Dogs
Corneal dystrophy is an inherited condition affecting the ability of the cells to process fat. It is an autosomal recessive trait, meaning both the dam and the sire must carry the gene in order for the puppy to be affected, at least in some breeds. In other breeds, the mode of inheritance appears to be sex-linked. In still other breeds, the mode of inheritance has not been identified.
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Diagnosis of Corneal Dystrophy in Dogs
Diagnosis is made from the observation of the lesion. This can be done by the use of a fluorescein dye which may clearly define the problem. Further testing of the eye may include intraocular pressure and tear test. Blood work is often done to verify markers in the blood consistent with this condition, such as cholesterol. An eye specialist may be brought on board by your veterinarian to rule out other corneal diseases or degradation.
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Treatment of Corneal Dystrophy in Dogs
In most cases, treatment is not needed. If the condition does not progress rapidly, cause the dog discomfort, or affect vision, often the best course is to leave the eye alone. Your dog may notice the spot on his eye for a while but his brain will train him to see past it without annoyance much like your brain will do the same for you.
Because the condition has to do with the process of fat, sometimes a low fat, high fiber diet is recommended. There is some disagreement among researchers as to whether or not a low-fat diet is effective. The general consensus is that the fat should be lower than 10% in dry matter (kibble) and adherence in all foods and treats is needed to see results.
Sometimes in cases of corneal dystrophy a topical acid treatment (TCA) may be recommended. This treatment may be done once or more times to aid in comfort. It helps to dissolve the mineral deposits that leads to ulcers.
In severe cases of corneal dystrophy, surgery to remove the mineral deposits can be recommended. As with any surgery, complications can arise. At times, scar tissue remains where the mineral deposits were. Other more severe complications can lead to rupture of the eye or retinal detachment. Although complications are rare, some can lead to blindness. Because corneal dystrophy sometimes is associated with Cushing’s disease, testing for that should be done after diagnosis.
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Recovery of Corneal Dystrophy in Dogs
There is no real recovery from corneal dystrophy. Management, unfortunately, depends on the severity of the case. Most cases do not lead to severe discomfort for the dog and they can lead a normal life. There is currently no certification required of breeders to prove dogs in their breeding program do not possess the inherited gene. Unfortunately, because some dogs do not develop the affliction until later in life, it can be difficult to remove them from a breeding program before they have been bred many times, possibly affecting many dogs.
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Corneal Dystrophy Average Cost
From 561 quotes ranging from $200 - $500
Average Cost
$250
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Corneal Dystrophy Questions and Advice from Veterinary Professionals
Need pet health advice? Ask a vet
Ask a Vet
Lacy
Bichon Frise
16 Years
Serious severity
2 found helpful
Serious severity
Has Symptoms
I have a question about my 16 year Bichon Frise, Lacy. She has had a tiny white spot in the exact middle of her right eye (cornea/pupil-?) that in the right light looks like a tiny white crater for about 6 months. I seemed to really notice after she had her teeth cleaned and some moles removed in March 2018 and with this she was put under anesthesia. She has seen her Vet twice with this among other things she is developing along with CKD. She squints most of the time especially out in the sun and if you go to pet her she backs away and put her head down with a tremble like i am going to hit her which i would never do. Could this be some type of Corneal Dystrophy. Current Meds Tobramycin Ophthalmic Solution was given for 10 days and then Artificial Tears Ointment that she is on now but none of this seems like it is giving her any relief and wondering if she is in pain with this. Would love to get your thoughts. THANK YOU!!!
Aug. 19, 2018
Lacy's Owner
Dr. Michele K. DVM
2 Recommendations
It is possible that Lacy has a chronic ulcer, and if she is trembling when you come near her eye, it may be painful. I think that it would be a good idea to have a referral to an ophthalmologist since this has been going on for so long, and she may need different therapy. I hope that she is okay.
Aug. 19, 2018
Thank you so much for the information. I have started her back on the Tobramycin Drops (Saturday 8/18) and it seems to be doing much better, i have a follow-up Vet appointment 8/23. Thanks again!!!
Aug. 21, 2018
Lacy's Owner
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Buttercup
Cocker Spaniel / poodle
2 Years
Mild severity
0 found helpful
Mild severity
Has Symptoms
Eye Clouding
Eye Redness
Eye Inflamation
Hello, my dog is 2 years old and she is a cocker spaniel/poodle mix. Recently she has developed a white bean /oval shaped spot on her eye. It does not look like it is cataracts or glaucoma as it is not cloudy. It seems as if it is growing on top of the eye. It does not bother her however she does sometimes develop eye boogers but that happens mostly when i take her outside around a lot of dirt and grass and it goes away after I use a hot compress and clean it often. could this be corneal dystrophy?
July 24, 2018
Buttercup's Owner
0 Recommendations
It is possible that this is due to corneal dystrophy, however there are three types of corneal dystrophy depending on the specific layer of the cornea: epithelial, stromal and endothelial. We do see Spaniels (among a few other breeds) affected by stromal corneal dystrophy than the other types; however, you should visit your Veterinarian for an examination as I cannot confirm the diagnosis without examining Buttercup myself. Regards Dr Callum Turner DVM
July 25, 2018
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chopper
Mixed
14 Years
Moderate severity
0 found helpful
Moderate severity
Has Symptoms
Flinching From Sunlight
Hi, I have a mixed breed, a bishon and terrier mix. He's now fourteen. Blood work from a few years back has showed him to cholesterol and triglycerides. He has developed a sensitivity when looking at bright objects, and will flinch when a shadow crosses his path. I am ordering him some high quality goggles, and have been applying castor oil to his eyes, thinking this is a cataract issue. However his eyes are not turning the typical white of cataracts, and look rather similar to the ones pictures with corneal dystrophy, just a whitish tint to the center of the eye. He is very terrified of vets, and I hesitate to put him thru that trauma, esp if there is nothing to be done. He is not in pain and the only symptom is this flinching form bright lights. What do you think? Should I take him in To an ophthalmologist even though this will cause him so much distress? Leave it alone and adjust our activities to when the sun is not out? Will our regular vet be able to diagnose something like this or do we need an ophthalmologist?
March 19, 2018
chopper's Owner
0 Recommendations
There are various causes for a change in opacity of the cornea or of the lens of the eye which include corneal dystrophy, cataracts, lenticular sclerosis among other conditions; the photophobia has me concerned since this may be an indicator of pain from an underlying health issue. Without having Chopper’s eyes examined I cannot say whether or not this is something to be concerned about or not; many times corneal dystrophy only requires treatment in severe cases. I would recommend getting a home visit if possible by your Veterinarian to examine the eyes, your regular Veterinarian would be able to determine the underlying cause. Regards Dr Callum Turner DVM
March 19, 2018
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Madyn
Shiba Inu
2 Years
Moderate severity
2 found helpful
Moderate severity
Has Symptoms
Grey Spot On Eye
I have a 2.5 year old Shiba Inu with a grey cloudy spot in the Center of his right eye, which is very superficial but isn’t raised at all (can’t be seen from a lateral view). My vet thinks it might be Pannus but quite unsure. She perscribed eye drops that would help shrink the spot if it were in fact this condition but isn’t responding to them. I contacted the breeder who has never seen this condition in a shiba before. There doesn’t seem to be any pain, discomfort, redness or discharge associated and appears his vision isn’t overly affected if at all. However the dye test was negative for any cell disturbance. Can corneal dystrophy occur strictly beneath the cornea and not show and lesions on a dye test? From my own research I think it is possibly lipidosis corneal dystrophy, it is the only condition I have found that looks remotely similar to the spot on his eye. I am hoping for any suggestions or information I can bring to our follow up appointment in about a weeks time. Thank you.
Jan. 10, 2018
Madyn's Owner
2 Recommendations
There are three types or ‘locations’ for corneal dystrophy: epithelial, stromal and endothelial corneal dystrophy; stromal and endothelial corneal dystrophy wouldn’t cause any problems with the surface of the eye. In these cases, it is always worthwhile discussing with an Ophthalmologist as they have more appropriate equipment for diagnosing these conditions. Regards Dr Callum Turner DVM
Jan. 10, 2018
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Jack
Golden Retriever
currently 7 weeks
Serious severity
0 found helpful
Serious severity
Has Symptoms
I have a puppy who has the entire cornea in one eye very cloudy with a blue cast. It was like that from the time he opened his eyes. The eye functions normally as far as moving, blinking, there is no swelling, redness or discharge, it does not bother him at all. Is this corneal dystrophy?
Oct. 19, 2017
Jack's Owner
0 Recommendations
A blue haze of a dog’s eye may be caused by corneal dystrophy, cataracts, nuclear sclerosis, glaucoma among other issues; I would get your Veterinarian to take a look when you take Jack to get his puppy vaccines in a week or two. Regards Dr Callum Turner DVM
Oct. 19, 2017
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Teddy
Cavalier King Charles Spaniel
3 Weeks
Moderate severity
0 found helpful
Moderate severity
Has Symptoms
Cloudy Eyes
My puppy is 3 week old and from 2 week old when he opened his eyes they were bulging and both eyes completely covered in a grey cloudy appearance I went to the vet got some antibiotic cream he been on it a week swelling has gone down a lot but his eyes still cloudy what could it be my breed cavalier
Zen
Border Collie
2 Years
Mild severity
0 found helpful
Mild severity
Has Symptoms
White Small Spots In Both Eyes
My two year old male Border Collie started developing small white spots on both his eyes a few months ago. We had blood work done at the vet without any levels being outside the normal. His eyes are functioning like normal except I can see the spots increasing in numbers. The spots remind me of cauliflower in shape and form.
Ziggy
Pitt bull mix
8 Weeks
Serious severity
0 found helpful
Serious severity
Has Symptoms
Swollen Eye
Gray Film Over Eye
I have a 8 week old Pitt bull mix that was fine then today I noticed he was acting a little differently and not active then I noticed that his entire right eye had a grayish blue film covering his eye that was not there yesterday so I called vet right away and brought him in. They did some test including pressure test and found that his was almost a 50 which is way over the normal range of 15. The vet said his prognosis was not well and he needed to immediately see a vet ophthalmologist . Can you please tell me if you have heard of this happening so quickly and if there is any other course of action because it will cost thousands of dollars for surgeries and specialist
Corneal Dystrophy Average Cost
From 561 quotes ranging from $200 - $500
Average Cost
$250
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