Purpose: The purpose was to describe the in vivo microanatomy of typical and atypical chorioretinal and juxtapapillary colobomas in the dog.
Methods: Three cross-breed dogs were found to be affected with colobomas. Two of the cases were NEHJ1 homozygous and Collie Eye Anomaly (CEA) affected and had the typical optic nerve head colobomas seen with the disease.