Hi There,
Look for an organization that provides "vision rehabilitation therapy" or "vision rehabilitation teaching" in your area.
This is a good place to start :
Vision Rehabilitation Therapists - VisionAware
I am a vision rehabilitation therapist in graduate school right now.
If she would like to use a long white cane, you can find an Orientation and Mobility instructor to help her.
VRT's and O&M's are certified and most have masters degrees but eye doctors usually do not know abut them because the field has not yet gained licensure. We provide very legitimate and helpful services though.