I noticed that my dog sometimes bumps into my leg when we play. Then he would run into direction where I throw a toy or bully stick but he wouldn't go directly to it but rather find it by smell. He also bumped into sign pole and couple mailbox posts. He wouldn't blink when I "stick" my finger into his eye or he wouldn't react for me waiving objects in front of his face, which used to make him either scared (comb) or curious (most things). I took him to vet and doc declared him blind. He is 7, and he is miniature Schnauzer.
But, he also exhibits "not blind" behaviors. He likes to cross streets. And when we walk, he stops on driveways and points towards exit. He used that we cross either off driveway or pedestrian cross and not over grass strip. When I do take him via grass and curb - first, he jumps off curb with confidence of dog that sees, then as we approach opposite curb, he jumps on it at right time and space as he sees exactly where it is. He is afraid of water drains on the street and when we approach one, he still doesn't want to come close to it. When I took him to vet today, when I turned to the street that leads to the office, he was crying like I never heard him before (we were there 2 days ago with his limping condition and they hurt him a bit). He was also trying to look out of window. When we drove back he was content.
I noticed this ~2weeks ago. That he was laying and not playing, and not finding his bones clearly when I threw them. He has some limp and they found some damage on the finger, which we blamed in his not playfulness. But this morning my wife saw him walking off the porch into the bush and finally, she believed what I said days back. And doctor confirmed. He also had wisdom thees removed 2.5 month back. While we're waiting for appointment with ophthalmologist... I am wondering, if his totally blind, or he sees something, or he sees dark and bright? Because he obviously does things as both, blind and not.