PHPV – PERSITENT
HYPERPLASTIC PRIMARY VITREOUS
The mode of inheritance of PHPV is not so clear, but it is known
that it is a congenital condition (present at birth) and that
it is not progressive. This means that if a puppy is born with
PHPV it can be detected by ophthalmic screening from 6 weeks
of age and if it is affected, whatever the condition of the problem
at that stage it will not change throughout the dogs life.
Either of the above conditions can be operated on, but it is a
serious operation and can be traumatic and very expensive. It is
not always covered by insurance due to the hereditary nature.
Even though the genetic test is now available for Hereditary Cataracts
it is still important to screen for PHPV.
PPSC – POSTERIOR POLAR SUBCAPSULAR CATARACT.
This type of cataracts is found in other breeds, particularly
the Labrador and Golden Retriever.
It usually remains as a small, punctuate cataract and doesn’t
usually lead to sight problems in these two breeds. It has been
placed on schedule 3 of the BVA/KC/ISDS Eye Scheme because a number
of Staffords that have been through the Scheme have been found
to have this type of cataract. This type of cataract cannot be
detected through litter screening. The mode of inheritance is unknown
and has a variable age of onset. BREEDING STOCK SHOULD
BE TESTED ANNUALLY TO DETERMINE THAT THE DOG IS CERTIFIED CLEAR
AT THE TIME OF MATING. Eye
Testing Clinics
|
