Australian Shepherd
Ocular Coloboma · Optic Disc Coloboma · Iris Coloboma · Kolobom des Auges · Uveal Coloboma · Aderhautkolobom · Iris-Kolobom · Coloboma iridis · Angeborenes Iriskolobom · Cleft iris
A coloboma is a congenital eye defect where a portion of the eye's structure, such as the iris, retina, or optic nerve, fails to develop completely. This occurs during fetal development when the optic fissure, which is the groove that helps form the eye, does not close fully, leaving a gap. It is a structural condition of the visual system with a complex inheritance pattern.
Owners may notice a keyhole-shaped pupil or a visible notch in the colored part of the eye starting in puppyhood. Depending on the size and location of the gap, the dog may also show signs of vision impairment, though some dogs show no obvious symptoms.
While the structural defect itself cannot be cured, regular monitoring through an ECVO eye examination is highly recommended. Management and potential surgical treatments for complications like retinal detachment typically cost between €150 and €3,500.
More conditions affecting the Eyes.
Estimated range of typical treatment cost. Actual cost depends on severity, clinic and region.