The Chinese Shar-Pei Eyes

Another topic of great debate, to tack or not to tack, to have entropion
surgery or not.

The Chinese Shar-Pei are born with wrinkled faces, some heavy, some
not, all rolling lids are genetic and I have seen some of the most wrinkled
faces, tack free, and rolling lid free.

The eyes are closed at birth, and open from about 14-19 days, and then
some never open, or open a little and shut tight again. What to do?  If
this is a show puppy, we want natural untouched eyes, and yes many lines
have successfully had generations of eye tack and surgery free animals,
but it is not easy to get.
I have bred tack and surgery free lines of
adults and still not been able to get tack free eyes from puppies. For a
breeder it is very frustrating.

Eyes can shut at any time during your dogs life and there are many
reasons for it, up to and including stress, walks where debris or pine
needles can get into the dog or pups eyes. Just because a puppy is born
with tack free eyes does NOT MEAN it will be free of this for the rest
of its life, and just because a puppy does have eye tacks does not mean
you will have any further problems with this condition either.

What is Entropion? Entropion is the inward rolling of the eyelid, most
commonly the lower lid, but can be both lids. This irritates the surface of
the eye (the cornea) and may ultimately cause visual impairment, by way
of scratching this cornea and causing the same affect as taking sandpaper
to a smooth surface, thus small scratches. See roll below instead of flat
against eyes like top one.












Entropion is a common hereditary disorder in dogs. Selection for a
particular conformation, of exaggerated facial features with prominent
eyes and/or heavy facial folds, has created or worsened this problem in
many breeds.

It is likely that entropion is influenced by several genes (polygenic
inheritance) that affect the skin and other structures that make up the
eyelids, the way the skin covers the face and head, and the conformation
of the skull.

This problem occurs in many breeds. Entropion is seen in the Shar-Pei,
Mastiffs, Akita, American Staffordshire Terrier, Pekingese, Bulldogs,
Pomeranian, Pug, Japanese Chin, Shih Tzu, Yorkshire Terrier,
Staffordshire Bull Terrier, Dalmatian, Old English Sheepdog, Rottweiler,
Siberian Husky, Vizsla, Weimaraner, Toy and Miniature Poodle and also
seen in hounds (Basset Hound, Bloodhound), spaniels ( Clumber spaniel,
English and American cocker spaniel, English Springer Spaniel, English Toy
Spaniel, Tibetan Spaniel), and sporting breeds Chesapeake Bay Retriever,
Flat-coated Retriever, Golden Retriever, Gordon Setter, Irish Setter,
Labrador Retriever,
Great Dane, Bernese Mountain Dog, Mastiff, Saint Bernard,
Newfoundland, and Great Pyrenees.

In the latter larger breeds the central lower lid is often ectropic while
the lid at the corners of the eye is entropic, which means you have both
conditions occurring.

The corner is rolling in and the center is hanging too low. For many breeds
and many disorders, the studies to determine the mode of inheritance or
the frequency in the breed have not been carried out, or are inconclusive.

What does entropion mean to your dog & you? The problem is usually
evident before a year of age. Discomfort from entropion will cause
increased tearing and squinting. Your dog may be sensitive to light and may
rub at its eyes. Chronic irritation by the turned-in eyelid may cause
corneal ulceration and scarring which is painful and, if not corrected, can
impair vision.

How is entropion diagnosed? The inrolling of the eyelid is readily apparent.
Generally both eyes are affected. Depending on the degree of corneal
irritation and the duration, there will be other signs such as those
mentioned above. Your veterinarian will evaluate the degree of entropion
and use flourescein dye to determine if there is any corneal ulceration.
FOR THE VETERINARIAN: The use of topical ophthalmic anaesthetic to
anaesthetize the cornea and conjunctiva will enable eliminatation of the
spastic component of the entropion in order to better evaluate the
anatomic component. This is important before surgery is performed.

How is entropion treated? Entropion is corrected surgically. If possible it
is best to delay surgery until the dog is an adult since the involved facial
structures are still growing and changing. More than 1 operation may be
required. It is better to correct the entropion conservatively and repeat
the operation later if necessary, than to over correct causing ectropion,
as the head reaches maturity and enlarges.

Breeding advice- Entropion is one of the eye conditions that is a result of
selection by breeders and a demand by the public for such features as
excessively prominent eyes and heavy facial folds. A responsible breeding
programme will choose animals for breeding with a more normal head
conformation, so as to select away from these exaggerated facial
features and the problems associated with them. The Vizsla Club of
America has recognized entropion as an unacceptable problem in their
breed, and advises breeders not to breed affected animals. Such
leadership by breed clubs is important in discouraging this and other
undesirable traits.

Temporary Entropion- Entropion is an eye problem that causes the puppy's
eyelids to roll inward. As a result, the eyelashes rubbing against the
cornea cause acute distress. Symptoms of eye problems include pawing at
the eyes and excessive tearing, leading to a cloudy discharge. I have
found it very useful to use lubricating eye drops in the puppies eyes once a
day, or polysporin or even castor oil. Especially when still teething, blowing
coat, when in season or around females in season, or during stressful stays
at kennels etc.

There is a chance that your Shar-Pei's eyes may blink or water slightly,
something which can also happen if your Shar-Pei is stressed. This will
usually subside when the temporary problem has been solved.

Usually 48 hours of drops will allow the eye to return to normal, otherwise
vet attention may be required to prevent an ulcer from forming, which is
caused from continual rubbing of the eyelashes on the eye, and this will be
visible to the human eye as it appears as a white area.

What is ectropion? - Ectropion is a defect of conformation in which there
is a sagging or rolling-out (eversion) of the eyelids. This results in
abnormal exposure of the eye, which often leads to irritation or excess
tearing, as this lower lid is open and you know yourself, if you are in the
wind your eyes tear. It is the opposite to entropion and can also be caused
by eye surgery and if too much skin is removed from the eye, but I have
also seen pups with this condition in the chinese shar pei as well. See loose
bottom lid.











How is ectropion inherited?- It is likely that ectropion is influenced by
several genes (polygenic inheritance) that affect the skin and other
structures that make up the eyelids, and that affect the way the skin
covers the face and head.

What breeds are affected by ectropion? -Ectropion is most commonly seen
in dogs with exaggerated facial features where it is often a breed
characteristic. It is found in the Basset Hound, Bloodhound, Boxer,
Bulldog, Clumber Spaniel, English and American Cocker Spaniel, Gordon
Setter, Labrador Retriever, Springer Spaniel, and Shih Tzu. Ectropion is
also common in giant breeds such as the Great Dane, Mastiff, Saint
Bernard, Newfoundland, and Great Pyrenees In these breeds the central
lower lid is often ectropic while the lid at the corners of the eye is
entropic.

What does ectropion mean to your dog & you? - Because of increased
exposure of the eye, dogs with ectropion are prone to develop allergic or
bacterial the surface of the eye and lines the eyelids. Affected dogs may
develop keratoconjunctivitis sicca because of reduced efficiency at wetting
and cleaning the cornea.

Dogs who have had surgical correction for a defect such as ectropion are
prohibited from exhibition in the show ring.

How is ectropion diagnosed? - In addition to the sagging of the eyelids,
dogs with ectropion commonly have a mucopurulent discharge in the eye,
reddening of the exposed conjunctiva, and decreased tear production. To
check the latter, your veterinarian will do a Schirmer tear test.

How is ectropion treated? With mild ectropion, no treatment may be
necessary. If secondary problems such as conjunctivitis develop, these are
treated as required. More severe ectropion can lead to chronic problems
associated with eye irritation. In these cases, surgery is performed to
remove a small wedge of tissue from the margin of the eyelid.

Even when you have all the posts in place for great eyes, you are still
facing other health problems that may be more concerning than eyes.

My rule of thumb was, if a pup requires eye tacking, it is done, and if it
does not then it is not done, but the bottom line here is health should
never be sacrificed for good eyes.  

A solid breeding program requires all concerns to be monitored and if I had
to choose tacking eyes over fevers, amyloidosis, cancers and allergies,
then it would have to be a breeding decision based on my discretion. Any
decisions on puppy or dog owners to pursue entropion surgery should always
be discussed with an experienced breeder and all surgeries should be
discussed with an experienced veterinarian, that is familiar with this
breed and this disorder.

It is important that head size should be considered as skulls do grown eye
problems could be outgrown.  Early entropion surgery could result in
ectropion as an adult and vice versa.

Dogs who have had surgical correction for a defect such as entropion  or
ectropion may not be exhibited in the show ring, so I guess any shar-pei
show dogs you see in the ring will never of had any tacks?  or corrective
eye surgery?






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Shar-Pei Canadiana.
Original Web Site opened October 25, 1997.
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