Wow, that would be scary. I'm really glad you've already been thoroughly checked out by a good eye doc!
Do you have Bart? Bartonella can cause intraocular inflammation, which I believe can cause those types of issues. Do you take anything to help reduce inflammation?
www.ncbi.nlm.nih.gov/pmc/articles/PMC3130920/ Of course, Lyme also causes eye issues too.
www.uveitis.org/docs/dm/lyme_disease.pdf