From what I've learned, there are 3 types of uveitis, anterior, intermediate and posterior uveitis, relating to which part of the uvea is inflamed. Intermediate uveitis is also called pars planitis, and this presents often with sudden shower of floaters, but no visual impairment, and thorough eye exams can miss this because the inflammation is not as obvious visually. Pars planitis is a common finding in people with autoimmune disease like MS and sarcoidosis. The immune system atttacks certain antigens on the uvea causing cell debris to enter the eye. That explains the wormy looking strands that float around, and the little white dots I can see are most likely red or white blood cells. From what I've read, this is with greatest certainty the reason for my floaters, and 2 eye specialists missed it, and I worked this out myself only recently by exhaustive research. Pars planitis is treatable with steroids like predisnone, and this is only used when eyesight is greatly affected.