Gelatt KN, Powell NG, Huston K. Inheritance of microphthalmia with coloboma in the Australian shepherd dog. (apbtconformation.com)
Damage to human chromosome 9 (of the cell's 24 pairs) where the gene that codes for E-NTPDase2 resides is known to cause eye and brain defects, such as microphthalmia — literally, small eyes. (scientificamerican.com)
Affected dogs present with microphthalmia of varying... (pwdfoundation.org)