Sorry to read this Lynn, but at least you now have a diagnosis to work with and hopefully find a communication method that works for you both.
In the UK we call the blue eye a “Wall eye” as folklore goes it was the side you put near the wall if selling a horse if it only has 1 blue eye!
I always steer clear of them as they give me the shivers!
Commented on So I recently took in a barrel horse ...
30 May 11:48
Richard Boatwright one for you Sir, way above my pay grade!