My heart does do out to in this issue.
When we got our little jakey he had been abused,beaten and battered to no end,he had serious aggression issues...so bad when he bit a family member our vet gave us the choice of putting him to sleep!
I said no...i firmly believed he desrved a chance and we had experiences of where he had issues with food,and coming at him from from behind,and him running under tables,beds ect when he had tried/bit us....
Now i will agree with the other P.T's here your little one sounds like she has serious issues and you have to decide to work with her or not...she needs ots of love,lots of time and lots of paitence...and never but never try to pull a frightened 'dig dog' out of his/her hidy hole ,they are there cause they are frightened and are seeking to feel safe.
Your little one is doubley hindered cause she is partialy deaf and blind,so she will take even more time....
I will be honest with you,i sometimes despaired about my Elvis(i call jakey that cause he now is my hunk a hunk of burning love ),feeding time we gave him his food and never but never messed with it while he was eating,we concentrated on building the bond and trust with jakey himself...and if he did have a episode then rather than do as someone told us-hit him with a rolled up newspaper-i just firmly told him i was disspointed and if he went under somthing fine,we left him-he eventually came out when he felt he wanted be included.
There is light at the end of the tunnel...i am so proud of my boy today,he his free from his hangups..even the vets are delighted with him.
I do hope you can resolve your problems,if i can offer any thoughts to you let me know.x.