My 80 year old mother needs to go to the eye surgery, will she be able to recover?

sir this is to give brief about mother cataract and complecate eye surgery. The cataract was very bad shape and had urgent removal with a big incision. I would like to know about the recovery process. Sine two weeks have passed her eye is still burning and paining. This is when we put drops in her eyes. Her recovery is there but slow but vision is very very low. When can she be able to recover. she is 80 years old. How long drops has to be continued. But doctor said although surgery was completed but sucessfully done. He said to continue the drops. Is it correct ? whether she will get late vision and eye will be ok. No retina and no diabetes problem. Please guide me.

Neelima Lilaramani