In the worst case, of this problem can u suggest a best way to help her seeing?
like eye transplant and all?
any other way to make her independent?
Diabetes is among the leading causes of poor vision and blindness worldwide. Laser tries to arrest the disease not cure it. Probably not your mom but many diabetics do not take care of their disease, they are obese or overweight, smoke, do not exercises, eat poor diets or take their medications.
The prognosis for your mother is poor given the time and treatment over the past years. I would suggest a 3rd opinion. If that Eye MD says nothing can be done to improve the vision
A very important factor is that when the eyes fail there is a very high incidence of heart, brain, kidney and blood vesses, extremitity disease.
Be sure she takes meticulous care of her diabetes.
JCH MD