The prognosis for someone with an acoustic neuroma on one side is usually quite good provided the tumor is diagnosed early and appropriate treatment is instituted. Long term-hearing loss and ringing in the ear in the affected ear are common, even if appropriate treatment is provided. Many patients also experience facial weakness, balance problems, and headaches. Regrowth of the tumor is also a possibility following surgery or radiation therapy and repeat treatment may be necessary.
The prognosis for someone with an acoustic neuroma on one side is usually quite good provided the tumor is diagnosed early and appropriate treatment is instituted. Long term-hearing loss and ringing in the ear in the affected ear are common, even if appropriate treatment is provided. Many patients also experience facial weakness, balance problems, and headaches. Regrowth of the tumor is also a possibility following surgery or radiation therapy and repeat treatment may be necessary.
Indicated treatments for acoustic neuroma include surgical removal and radiotherapy.
Edit: Sorry I cant help you more, Hope your dad recovers