Finally found a good horse vet ( in our rural area all the good vets are cow vets) to examine my horse. She said he is blind. He can see blobs and not much of that were her words. Definitely explains a lot. Also, definitely helps with how to go about earning his trust and building his confidence. Anyone one have any experience with this? Also, if you have a blue-eyed horse that is erratic, defensive, and nervous, it might help to get its vision checked.