It's possible you're thinking of a horse with a condition affecting its eye socket, such as:
* Enophthalmos: This is a condition where the eye sinks into the eye socket. It can be caused by various factors like trauma, infection, or tumor growth.
* Exophthalmos: This is a condition where the eye bulges out of the eye socket. It can be caused by conditions like thyroid disease or tumors.
However, without more context, it's impossible to know what you're referring to. If you could provide more information about what you're asking, I might be able to help you.