Hi there. Diagnosed with type 1 about 9 years ago. Rethinopathy was discovered in this year's scan but no action necessary (6 or 7 months ago). One eye has been a bit sore in the mornings lately and there's a bit of leakage, bloodshot so went to my GP yesterday. He seemed concerned and has referred me urgently to an opthamologist. A friend of mine went blind with untreated diabetes. My levels are ok, sometimes high in the morning (8 or 9) but this has really spooked me. Does anyone know about how quick the onset of blindness can happen?