Yea, that's a tough one to separate! In some patients, we'd find dryness that was horribly painful, post-LASIK, but their corneas didn't look THAT dry. We attributed it to the nerves that were cut (or lasered) during the procedure.
In MS, it could be nerve damage, but there are a few other causes I'm looking into. Meanwhile, there are lots of options for her! I am using them all!
Special interest in "brain drains" and how they affect numerous conditions, including MS, Ehlers-Danlos, Parkinson's, Alzheimer's, etc. I am a therapeutic optometrist on professional disability with EDS, POTS, CCSVI, mast cell disea