Persistent Hyperplastic Tunica Vasculosa Lentis (PHTVL) and Persistent Hyperplastic Primary Vitreous (PHPV)(PHTVL/PHPL)
Persistent Hyperplastic Tunica Vasculosa Lentis · Persistent Hyperplastic Primary Vitreous · PHTVL/PHPV · PHPV · PHTVL · Persistierender hyperplastischer primärer Glaskörper · Persistierende hyperplastische Tunica vasculosa lentis · Persistent hyaloid artery · PHA · Persistierende Arteria hyaloidea
What it is
This is a congenital eye disorder where the temporary blood vessel network that nourishes the lens before birth fails to shrink and disappear as it normally should. Instead, this embryonic tissue remains and grows abnormally behind and around the lens. This can cause cloudiness in the lens, known as cataracts, and other structural changes inside the eye.
How it presents
Owners may notice a whitish or cloudy appearance in the puppy's pupil, or signs of vision loss such as bumping into things. The condition is present from birth and is typically detected during a veterinary eye exam between 6 and 9 weeks of age.
Treatment
Mild cases may only need regular monitoring, while severe cases may require specialized surgery to remove cataracts or abnormal tissue. Treatment costs range from €300 for diagnostic monitoring to €4,500 for complex surgical intervention.
How it's tested
Affected breeds
Mandatory testAkita
Mandatory testDachshund
Mandatory testDachshund
Mandatory testEast Siberian Laika
Mandatory testGreenland Dog
Mandatory testHokkaido
Mandatory testIcelandic Dog
Mandatory testJämthund
Mandatory testJindo
Mandatory testKarelian Bear Dog
Mandatory testKintamani-Bali Dog
Mandatory testKishu
Mandatory testKomondor
Mandatory testLapinporokoira
Mandatory testMiniature Schnauzer
Mandatory testMudi
Mandatory testNorwegian Buhund
Mandatory testNorwegian Elkhound (Black)
Mandatory testNorwegian Elkhound (Gray)
Mandatory testNorwegian Lundehund
Mandatory testPuli
Mandatory testPumi
Mandatory testSamoyed
Mandatory testSchapendoes
Mandatory testShikoku
Mandatory testSwedish Lapphund
Mandatory testTaiwanese Dog
Mandatory testTibetan Spaniel
Mandatory testVästgötaspets
RecommendedDachshund
RecommendedLagotto Romagnolo
RecommendedLaika (Russian-European)
RecommendedLaika (West Siberian)
RecommendedStaffordshire Bull Terrier
OptionalOld English Sheepdog (Bobtail)
OptionalSiberian Husky
Treatment cost
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.