I've been type 2 for 15 years, good control on LCHF diet and I take metformin. Last year at my screening the screener said immediately that she could see "a bit of background" in both eyes. This was after clear scans every year since 2004. This year I went for my screening and she said my eyes looked fine. Sure enough my letter came today saying no sign of any retinopathy. Can it just disappear? Incidentally I had my usual sight test last week and paid an extra £10 for an OTC scan which showed no problems at all. Has anyone else experienced this?