@gardenturtle- I completely agree with "cellmania". Do not give up hope and try to keep your aunt positive about her outcome.
I have a son with RP (Retinitis Pigmentosa). That basically means that he cannot see at night. He also experiences severe tunnel vision. He as attended Alabama School for the Blind since he was three years old. It is heartbreaking to know that his condition is permanent and degenerative. However, I never give up hope.
He graduated two years ago and is now in college and works part-time. I am always researching the web and any other resources for new information. I recently learned that they have now found a possible procedure that might help regain some of an RP patient's vision.
I am certainly not getting my hopes up but I am also not giving up the idea that he may one day get better. Stay positive and be persistent about any new procedures that could help.