Eye Checks and Coat Colour: Two Different Records

An eye certification is a record of what a veterinary ophthalmologist saw on a specific date, not a statement about coat colour or genetics. If you are holding a form with codes like PPM, RD, or CEA on it, that form tells you about the dog's eyes at that exam. It says nothing about whether the dog is merle, sable, or ee red. Breeders who mix the two records in conversation cause themselves real problems later, so keep them separate from the start.

Why do eye codes and colour descriptions get confused?

Both live on paper that looks official. Both use short letter groups. Both get copied into a folder and then quoted from memory at a kitchen table.

The difference is what each one measures. An eye exam measures the physical structure and health of the eye on the day of the exam. A colour description measures what you can see in the coat, and sometimes what a DNA test says about the genes behind it. One is a clinical snapshot. The other is a description of appearance, backed in some cases by genotype.

I have watched people argue that a merle dog cannot have a clear eye exam, or that a red dog must have a certain eye finding. Neither claim holds. Coat colour and eye findings are separate traits. They can appear in the same dog, but one does not cause the other.

When you write a breeding file, label each document by what it actually records. An ophthalmologist's form goes under eye certification. A colour note, a photo set, or a DNA panel result goes under coat and pattern. Anyone reading that file later, including a puppy buyer, will thank you for the separation.

If you want a plain-language reference for the colour side, the guide at Border Collie coat colour walks through pigments, patterns, and markings without pretending to be a clinical document. That is the right use for it. It describes what you see and how to document it. It does not replace an eye exam, and it does not claim to.

What an eye certification proves, and what it never proves

An eye certification proves that a named examiner looked at a named dog on a named date and recorded specific findings. That is the whole of it. The certificate is a dated observation, not a guarantee about the future.

It never proves that the dog will stay clear for life. Eyes change. Some conditions are age-related and will not show up in a young dog. It never proves anything about the dog's siblings, its parents, or its future puppies. It never proves anything about coat colour, hearing, or temperament.

This matters because buyers sometimes read a clear eye certificate as a blanket health clearance. It is not. It is one data point among several, and a good breeder will say so out loud rather than let the buyer assume more.

What you can do is keep the exam current on your breeding dogs, follow your breed club's recommended schedule, and record the date on every form. A certificate without a date is close to useless in a breeding discussion.

How do I record colour without overstating it?

Separate what you see from what you know.

What you see is the phenotype: the actual coat in front of you. Black, brown, blue, lilac, merle, brindle, sable, ee red, white markings, ticking, roan. Write it down in plain words. Take photos in daylight, from the side and from above, at the same age for each puppy in a litter. Photos taken under a kitchen light at night are not a record.

What you know is the genotype, and often you do not know it. A dog that looks black may carry brown. A dog that looks red may be ee red with no black pigment anywhere, or it may be a sable with heavy red shading. Those are different genetic situations that can look similar in a photo.

DNA testing can settle some of it. It cannot settle all of it. When a test result and a visual description disagree, write both down and note the disagreement. Do not quietly overwrite the visual record with the test, and do not ignore the test because the coat looks a certain way.

The same discipline applies to eye and nose pigment. Pigment on the nose and around the eye rims is part of the colour picture, and it is also something an examiner notes. Record it once, in the colour file, and let the eye form speak for itself.

Where does hearing fit into a colour conversation?

More often than people expect, and usually badly.

Certain patterns, particularly merle and heavy white, are associated with a higher chance of pigment-related deafness. That association is real and worth knowing. It is also not a diagnosis. A dog with a merle coat may hear perfectly. A dog with almost no white may be deaf. You cannot read hearing off a coat.

If hearing status matters for your breeding decisions, test it. A BAER test gives you an answer. A coat description gives you a risk conversation, not an answer.

This is where breeders get sloppy. They see a lot of white and assume a problem, or they see a solid coat and assume none. Neither assumption belongs in a breeding file. Write the coat down as a description. Write the hearing test result down as a result. Keep them in separate columns.

What should a puppy buyer actually receive?

A dated eye certification for the parents, with the examiner named. A clear statement of what the certificate covers and what it does not. A colour description of the puppy in plain words, plus photos. Any DNA results the breeder has, labelled as results, not as descriptions. Hearing test results if the breeder has them.

And a sentence, spoken or written, that says these are different kinds of records. That single sentence prevents most of the confusion I have seen over the years.

Buyers who understand the difference ask better questions. They stop asking whether a clear eye exam means the puppy will never have an eye problem, because they already know it does not. They start asking about exam dates, about the parents' history, and about what the breeder actually knows versus what the breeder assumes.

Keeping the two files apart over time

Twenty-eight years of litters teaches you that memory is unreliable. What you remember about a dog's colour at eight weeks will drift. What you remember about an eye finding will drift faster.

So write it down the same week. Date everything. Keep the eye forms in one place and the colour notes in another. When you talk to a buyer, say which file you are reading from.

None of this is complicated. It is just two kinds of records that happen to live in the same folder, and a habit of never letting one stand in for the other. Do that, and your paperwork will hold up years later when someone asks you a direct question about a dog you no longer own.