Symptoms of a central retinal artery or branch occlusion include a sudden, painless loss of vision or decrease in visual field.  It can also help you lose weight, especially when you exercise, too. This condition is the leading cause of blindness in people between the ages of 20 and 60. Macular ischemia: small blood vessels capillaries close. Severe loss of vision or even blindness can result if surgery is not performed to reattach the retina. If they leak blood, severe vision loss and even blindness can result. The longer you have diabetes and the less controlled your blood sugar is, the more likely you are to develop this eye complication. Laser treatments may also be used.

People with diabetic retinopathy may need eye exams more frequently. These blood vessels may swell and burst, causing bleeding and damage to the eye. Diabetic and hypertensive retinopathy are diagnosed in much the same way. Most people require monthly anti-VEGF injections for the first six months of treatment. At some point, additional treatment may be recommended. In the clinic, diagnostic devices that use A may improve the detection of subtle changes in retinal tissue and blood vessels.