Here's what I was alluding to with the last post about Mom's health. She started having headaches a couple of weeks before the Italy trip. Then the vision in one eye suddenly diminished. She said it was like looking through a piece of lace or a veil. She saw several doctors and went to three different hospitals. She was treated for a sinus infection then told that she had an issue with the optic nerve. Getting an MRI was a bit of a hassle and then it took a week before we could get the results (we decided to go ahead and go to Italy).
The radiologist said that she had a sinus infection and Mastoiditis (infection of the temporal bone behind the ear). The optic never looks perfect. So hopefully the vision will just return to normal as the antibiotics clear up the infection. I'll keep you posted.