Hi CatLady, its common to get blurred vision and changes in eye sight after getting blood glucose levels under control/reduced, after a period of running high ie. before diagnosis when the pressure increases behind the eye and basically squeezes it out of shape, as this happens very slowly most people dont notice the slow deterioration of their eye sight. After diagnosis if bg levels are reduced quickly the sudden release in pressure causes the vision to return to normal and when this happens quickly we notice it, it presents as blurred vision usually our medium to long vision is affected, I had to wear +1.5 reading glasses to drive for the first four to six weeks after getting my bg levels under control so that I could see proberly.
I was told not to have my eyes tested for at least six to eight weeks after diagnosis to let my vision stabilise as any prescription given when the eyes are blurry would be useless once the eyes have returned to normal.
I did show background retinopothy at my first scan, however this disappeared at the second scan and subsequent scans have all been clear as well, thankfully.
So if you have recently got your levels under control or reduced them significantly dont worry if you have blurred vision it should return to normal after six or so weeks at the reduced bg level.