Diabetic retinopathy is caused by damage to the blood vessels in the tissue at the back of the eye (retina) by diabetes. The increase in blood sugar and its strong variations damage the small vessels of the retina which, in the long term, disrupts vision.
Symptoms: The first symptoms are a blurred effect, dark areas in the vision, difficulties to perceive colors, distortion of images and lines that can even lead to blindness.
Diagnosis: it is important to consult an ophthalmologist as soon as diabetes is diagnosed in order to assess the situation and avoid complications, since the symptoms only appear at an advanced stage of the disease.
Mild cases can be treated with strict diabetes control, while advanced cases may require intravitreal injections, laser treatment or surgery.