My mare had to have her eye removed last Feb due to a cancer tumor… that got very bad. I was so worried she would not be able to sort the cows like she had before. She’s a great cowhorse. I was so happy to find out, she is just as good as ever, it does not bother her at all even on the blind side.
I was also amazed how well she knows where things are on her blind side… like when opening/closing gates while am mounted. She never has an issue.
So amazing how well they adapt.