My Hamish bunny is very poor sighted. He scans, but he also struggles i you move things, and can be seen sniffing and scanning to see whats changed. He also thumps a lot more than the others, like if he hears something he worries and thumps. Im hoping once I can bond him with Ava she will help calm him.
My previous bunny, Buzzby, was deaf. He couldnt hear you coming up behind him no matter how much noise you made, and he was terrified when he finally caught sight of you. He was never scared of sounds, and I think it made him a more confident bunny in a way. It was just watching his complete lack of awareness of any sound, that was all we knew.