Dear sir, I'm an audiologist and working with people with hearing loss from a long time. The information provided by you is insufficient. The outcome of hearing aids depends on few things 1. Speech discrimination score with and without hearing aids. If speech discrimination scores are poor, then there are chances that she may not hear properly from hearing aids also. In that case, you may have to start auditory training in consultation with your audiologist 2. Type of hearing instrument used 3. And most importantly, it should be fitted by an qualified audiologist. 4. What is the status of hearing in other ear? Because to understand properly,you would require intact hearing ability in both ears.