Many problems can be treated with much greater success when caught early. People with untreated diabetes are 25 times more at risk for blindness than the general population. Diabetic retinopathy may progress through four stages: Mild non proliferative retinopathy. Optical coherence tomography OCR. Abnormalities may include thickening of the small arteries, blockages of retinal blood vessels and bleeding from them. http://experteyedoc.macsverige.org/2016/12/05/uncovering-elementary-solutions-in-glaucoma/Although several medical conditions e.g., sickle cell disease, lupus can cause retinopathy, the most common causes are diabetes and hypertension high blood pressure. http://experteyedoc.macsverige.org/2016/12/05/some-growing-options-for-speedy-solutions-for-laser-eye-surgery/It is one of the most serious consequences of proliferative retinopathy. Diagnosing retinopathy begins with taking a thorough personal and family medical history, including symptoms, and completing a physical examination, including an extensive eye examination. The new vessels are also often accompanied by scar tissue that may cause the retina to wrinkle or detach. Because diabetic retinopathy often lacks early symptoms, people with diabetes should get a comprehensive dilated eye exam at least once a year.