Iris defects
Also known as: Iris coloboma · Iris hypoplasia · Iris-Kolobom · Iris-Hypoplasie · Aniridia · …
Overview
What it is
Iris defects are congenital structural abnormalities of the iris, which is the colored part of the eye that controls how much light enters. These defects can include colobomas, which are gaps or holes in the iris, or hypoplasia, which is the underdevelopment of the iris tissue. Because of these structural changes, the pupil cannot constrict normally to regulate light.
How it presents
These defects are present from birth and are typically noticed in young puppies as irregularly shaped pupils or visible gaps in the colored part of the eye. Affected dogs may also show sensitivity to bright light, often squinting or seeking shade on sunny days.
Treatment
There is no cure for iris defects, but they generally do not require active medical treatment. Management focuses on avoiding bright sunlight, with lifetime veterinary monitoring and diagnostic eye exams costing between 150 and 600 EUR.
How it's tested
ECVO Augenuntersuchung (DOK)(ECVO-DOK)
Primary testEye examAugenuntersuchung durch ECVO-zertifizierten Augentierarzt (Dortmunder Kreis). Erkennt PRA, Katarakt, Entropium, CEA, MPP, RD u.a.
Issuing body: ECVO
Result scheme: Eye-ECVO
Affected breeds
Treatment cost
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.
Frequently asked
What is Iris defects?
Iris defects are congenital structural abnormalities of the iris, which is the colored part of the eye that controls how much light enters. These defects can include colobomas, which are gaps or holes in the iris, or hypoplasia, which is the underdevelopment of the iris tissue. Because of these structural changes, the pupil cannot constrict normally to regulate light.
How is Iris defects tested?
Tests currently in our database: ECVO Augenuntersuchung (DOK).
Which breeds are most affected?
This condition isn't tied to a specific breed in our database.