My sister's mix. The chap is running on his last legs.
Old dogs still love you just the same, they don't judge ,and they are beautiful.
Our dog Charlie is approaching 12 yrs old but I still love him just the same as when he first arrived at 12 weeks, in fact more.
My sister's dog is a likable dog but even when he's only eight (bigger dog), he already has a hard time walking and now is losing his vision too. I noticed when I throw a ball and he misses it completely. Last year he didn't have any problem with that. Either his depth vision or all vision is getting pretty bad.
Get his eyes checked for Cataract. It is becoming quite common here in India.