I'm so sorry to hear about your Mom, /u/endlessbull
St. Louis has a fabulous organization called Society for the Blind and Visually Impaired. Not only does it personally help people, they'll be able to help her connect with local and state resources, which she'll need as she ages and loses more vision. Also, state resources are usually how you get all the transportation options, mobility training, funding to alter anything in her house that would improve mobility, etc.
Here is all the Society's contact information:
$1**314-968-9000**
And
$1 to them, but I'd definitely talk to them by phone and not just this form.