This is Maureen Duffy, Editorial Director of VisionAWARE.org, an online resource center for adults and older adults with vision loss. We have many resources that can help you in your quest.
Here is our Arizona resource listing: http://www.visionaware.org/AZ
We also provide good information about low vision and low vision devices for reading: http://www.visionaware.org/what_is_a_low_vision_examination
I hope this is helpful!