Our little rescued Terrier cross "Buster" has had a bit of a bad do just lately,firstly  he suffered a stroke leaving him with a bit of a tilt to the head, he pulled through only to be attacked again by a hound off lead.
Surviving that we noticed he had a lump on his cheek and was pawing at his nose. Another trip to his favourite vet and the lump was drained, but he needed to have some teeth removed and an infection treated.
He lost 7 teeth in all but he is now pain free, however his sight that was getting poor has finally failed with one eye showing a grey pupil the other red.
His hearing I believe is "selective" as he detects the treat bag opening at 100 yards.

Aged around 14-17 according to the vet, he still enjoys his food, his garden, the field (as long as we stay on his marked trail) his sleeping has increased, and we do keep looking to see if he is breathing. (why do they hold their breath?) 
In short he appears to enjoy a good quality of life and seems happy in himself given the circumstances.

Anyone on here with experience of a geriatric doggie,  tips would be appreciated.