Lanzlady, I don't understand. If your tests for D are negative, how can you have diabetic retinopathy?
i had mild retinopathy diagnosed several years ago. My A1c had been below 6.0 for severl years prior, but i was having many highs and lows. Highs and lows can compensate for each other and still produce a good BG average and A1C. The shock to the body of changing from high to low to high to low.... over a long period of time can cause diabetes complications. Research has shown this to be true. I tightened my control and started using an insulin pump. I started having very few highs and lows. The retinopathy, and also some neuropathy, disappeared. i have had no diabetes complications for the last three years. If you do not pump, it is still possible to have steady control while using injections.