I experienced blurry vison and saw my ophthalmologist assuming my cataracts had matured. Instead the Sjogren's that had previously only caused dry mouth was causing dry eyes, which, in turn, was causing the blurriness. As you explore autoimmune diseases, Sjogren's should be on your list to confirm or eliminate. Once thought to cause only dry mouth and eyes, we now know it can affect many different organs (often misdiagnosed as fibromyalgia) .