Aussie Genetics Fact Sheet: Blue Eyes In Non-Merles by C.A. Sharp Sometimes Australian Shepherds which are not merle will have blue eyes. These eyes (sometimes one, sometimes both) are completely blue, or perhaps half blue/half pigmented. They are never flecked or marbled. This kind of blue eye has nothing to do with the merle gene, white trim genes or the albino gene (which probably does not exist in dogs). These eyes are completely sound, though perhaps slightly light sensitive just as blue-eyed people are slightly more light-sensitive than those with brown eyes. Siberian Huskies are an example of another breed with this type of blue eye. The mode of inheritance is unknown, but since the blue eyes can be single or a pair and an individual eye may be half-and-half, there is probably more than one gene involved. Blue-eyed non-merle Aussies are sound and are correct as per the breed standards.