I have had blurry vision with my CRPS type2. I have full body RSD CRPS mine started with a severely broken right leg. An eye doctor specialist said it was difficult to treat because RSD can transcient nature. Whether my face is flaring or which side is hurting. One visit he would see issues with my right eye and left was good the next it was reversed. Also some medications can have blurry vision as a side effect...Lyrica caused my vision to blur. Also some medications can cause your blood sugar to rise...esp. some anti-depression drugs or if you are prescribed steroids for flares. All this being said I would check with your doctor and eye doctor. I hope that you are having a low pain day. prayers & gentle hugs

Leonice