16 year old lab

Question
I have a 16 year old female spayed chocolate labrador.  She is still very much enjoying life, although her hearing has all but disappeared, her eyes are quite clouded over, and she is a bit stiff (she had a ccl repair at 13 and walks with a limp).

Anyway, my question is do I continue with all of her shots or are there some that might be more harmful to her at this age?  My old vet was like - why bother with the shots at this point - that's one reason she is my old vet.  But it also got me to wondering if some may do more harm than good in a geriatric dog.

Also - someone mentioned "chewed up" style rawhides as a treat - I hate to be stupid but what exactly are those?  She LOVES her rawhides, but has been having increased difficulty chewing them up.

Any other wisdom for this grand old dame in her sunset years?

Answer
That is a good question.  There are many vets that question current practices even with younger dogs.  Unless I have very reliable information otherwise, I seldom tell people to go against their vet's advice.  Even less so when the vet is advising more conservative treatment.  Unless you have a new vet that is saying different, go ahead and skip the shots.  I would comply with your state's law on rabies and other shots.  

Among those that know dogs well, the closest you will ever come to a consensus is that rawhides are dangerous.  I have never heard of the ''chewed up'' style rawhides.  I have seen chews molded from small pieces of rawhide, perhaps that is what they mean.  The pet stores are full of toys that many dogs will quickly chew up into pieces they could choke on or cause intestinal blockages.  If you are not
there to watch, stick to sturdy stuff such as Nylabones and Kongs.  Keep a
close eye on chew toys and quickly discard anything that is coming apart in
pieces.  Rawhide is especially bad because it swells after being swallowed.
These problems are the worst with, but not limited to, large, aggressive
chewers such as Labs.  The molded product could be safer because a large chunk gulped down might break up.  I have never seen much discussion of them.  

Despite having at least one young Lab in the house most of the last 17 years, I haven't had one have a problem.  I do take every precaution I can, but I figure it is a matter of luck that it was a litter mate of my one puppy that had a bathrobe belt surgically removed rather than my puppy.  I like the story of the one Lab that swallowed a pair of red panties.  It wasn't the owner's panties.  Most of my dog info comes from a large dog guide school.

It seems heartless to say cut out her rawhides now, but the molded ones might be a safer alternative.  

My one Lab was 14 last fall.  I would love to have her for another 2 years or more.  The one thing I would say is get prompt attention even for little things.  Mine quit eating ice cubes las summer.  A couple of weeks ago, the vet discovered a tooth that had been bad for a while.  Maybe I should have had her checked sooner.