Only £55 with results in 7-10 working days
Our test is a reliable and accurate way to identify dogs that are clear, carriers, or affected by CEA, helping breeders make informed decisions to reduce the risk of passing this condition on to future generations.
IMPORTANT: Please check the list below of breeds that can be tested for CEA before ordering. We can only test the breeds listed below and cancellation charges will apply for orders placed for breeds that we do not test.
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What is Collie Eye Anomaly/Choroidal Hypoplasia (CEA/CH)?
CEA is a congenital (present from birth) condition affecting the development of the choroid – a layer of tissue in the eye essential for proper vision. In affected dogs, this tissue is underdeveloped (choroidal hypoplasia), which can lead to additional complications such as retinal detachment, haemorrhages, or colobomas.
The severity of the disease can vary widely. Some dogs may show no obvious visual impairment, while others may suffer from significant vision loss.
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Why Test for CEA?
- Identify carriers with no symptoms
- Prevent breeding of two carriers and reduce incidence in future generations
- Support responsible breeding practices
- Peace of mind for owners and breeders alike
Early genetic screening is especially important in breeding programs to ensure the long-term health and welfare of dogs within susceptible breeds.
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Sample Collection & Turnaround Time
The CEA DNA Test is simple and non-invasive. We provide a DNA testing kit that includes sterile mouth swabs for collecting a sample from the inside of your dog’s cheek. Full instructions are provided with the kit.
Results are typically available within 7-10 working days from the date samples are received at the laboratory.
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Breeds Affected by CEA
CEA is most commonly found in herding breeds, including:
- Australian Labradoodle
- Australian Shepherd
- Bearded Collie
- Border Collie
- Boykin Spaniel
- Collie
- English Shepherd
- Hokkaido
- Lancashire Heeler
- Longhaired Whippet
- Miniature Australian Shepherd
- Nova Scotia Duck Tolling Retriever
- Rough Collie
- Shetland Sheepdog
- Silken Windhound
- Smooth Collie
- Toy Australian Shepherd
Even if a dog shows no visible signs of the condition, it may still carry the mutation and pass it on to its offspring.
We can test mixed breed dogs as long as one or more of the breeds is listed above. However, it should be noted that the test results will only be relevant to the breed(s) on the list. We cannot test for breeds that are not included in the list above.
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What will CEA DNA Test Results Tell You?
CEA is inherited in an autosomal recessive pattern. This means a dog must inherit two copies of the mutated gene (one from each parent) to be affected.
| Genotype | Description | Breeding Advice |
|---|---|---|
| Clear | Dog does not carry the mutation | Will not pass on the mutation |
| Carrier | Dog carries one copy of the mutation | May pass on the mutation if bred |
| Affected | Dog has two copies of the mutation | Will pass on the mutation to all offspring |
DNA testing allows breeders to avoid mating two carriers, which would risk producing affected puppies.
Please click on the image below to view our Collie Eye Anomaly DNA Test Result Chart:
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Other Dog DNA Tests from AffinityDNA
As well as the CEA/CH (Collie eye anomaly/Choroidal hypoplasia) DNA Test we also offer a range of inherited disease screening tests including:
- Degenerative Myelopathy Test (DM)
- Exercise Induced Collapse Testing (EIC)
- Hyperuricosuria DNA Test for Uric Acid
- Multidrug Resistance 1 MDR1 Test
- PRA-prcd Testing
- von Willebrand Disease DNA Testing
Dog Allergy Testing, Dog Parentage Testing and a Breed Test with information about the personality traits and predisposition to diseases for each breed found in your dog’s DNA.
If you have any questions about CEA/CH (Collie eye anomaly/Choroidal hypoplasia) DNA Testing for your dog, please do not hesitate to Contact our Customer Service Team who will be happy to help you.


