s there something wrong with an eye that is both brown and blue?
No. This is called a “pinto eye”, a “parti eye”, or a “split eye.” It is also fairly common in the breed. One or both eyes may be all blue with a brown pie shaped wedge, or all brown with a blue wedge. At first glance, it may appear that there is something wrong with the eye but there is not. It is simply a matter if pigmentation. This too is perfectly acceptable in the breed.