In the early stage of diabetic retinopathy there may be no symptoms. It is very important not to wait until you see less to be examined. Rapid changes in glycemic values, even in the absence of frank retinopathy, can result in transient blurring of vision. If the macula, the central and most noble part of the retina, fills with fluid (edema) and blood, due to diabetic disease, vision becomes more seriously blurred, and visual recovery, even after treatment is more difficult. If, on the other hand, you suddenly see black dots, moving bodies, or complete blurring in the visual field, it could be internal bleeding due to the growth of abnormal and fragile new blood vessels that leak fluid and blood, at the retinal and optic nerve levels. This phase is known as proliferating diabetic retinopathy. It is important to be seen urgently if you notice a worsening of vision lasting more than a few days, and not associated with a glycemic surge.
