Question: What are the symptoms of Prevent diabetes problems: Keep your eyes healthy ?
Answer: Often, no symptoms appear during the early stages of diabetes retina problems. As retina problems worsen, your symptoms might include - blurry or double vision - rings, flashing lights, or blank spots in your vision - dark or floating spots in your vision - pain or pressure in one or both of your eyes - trouble seeing things out of the corners of your eyes
Source: NIDDK

Question: What are the treatments for Prevent diabetes problems: Keep your eyes healthy ?
Answer: You can help your diabetes retina problems by controlling your - blood glucose - blood pressure - cholesterol and triglycerides, or types of blood fat If your retinopathy still does not improve, then you may need other treatments. You will need to see an ophthalmologist who can decide whether you need one of these treatments: - Medicines. Your doctor treats macular edema with injections of medicines into the eye. These medicines block a protein in the body that causes abnormal blood vessel growth and fluid leakage. Reducing the fluid leakage often allows the retina to return to normal thickness. The ophthalmologist will numb your eye and then insert a tiny needle to deliver the medicine. - Laser treatment. Your doctor can also treat macular edema with focal laser treatment. In one visit, the ophthalmologist will numb your eye and place many small laser burns in the areas leaking fluid near the macula. These burns slow the leakage of fluid and reduce the amount of fluid in your retina. Sometimes your doctor also treats diabetic retinopathy with scatter laser treatment. In two or more visits, the ophthalmologist will numb your eye and place thousands of laser burns around the new, weak blood vessels away from the macula, causing them to shrink. Laser treatment can greatly reduce your chances of blindness from retina damage. However, laser treatment often cannot restore vision that has already been lost. Treatment with medicines or lasers can be performed in your ophthalmologists office. - Vitrectomy. If the bleeding in your eye is severe, you may need to go to the hospital for a surgery called a vitrectomy. Your ophthalmologist will numb your eye or give you general anesthesia to help you fall asleep. The ophthalmologist will make a tiny cut in your eye and remove the vitreous gel that is clouded with blood. The ophthalmologist replaces the vitreous gel with a salt solution.
Source: NIDDK