What are the symptoms of diabetic fundus lesions

The symptoms of diabetic retinopathy may not be obvious from the early stage to the middle stage of the non-proliferative phase, and as the disease progresses, macular edema and vitreous hemorrhage appear, vision will show severe deterioration. The impact of proliferative diabetic retinopathy on vision is that once it enters the proliferative phase, it is the most severe stage, and the impact on vision is very significant, and even the patient can show blindness.