Six Days of Package Delivery, Five Days of Mail Delivery Begins August 2013. WASHINGTON â The United States Postal Service announced plans today to transition to a new delivery schedule during the week of Aug. 5, 2013 that includes package delivery Monday through Saturday, and mail delivery Monday through Friday.
There is no cure for diabetic retinopathy. But laser treatment (photocoagulation) is usually very effective at preventing vision loss if it is done before the retina has been severely damaged. Surgical removal of the vitreous gel (vitrectomy) may also help improve vision if the retina has not been severely damaged.
Diabetic retinopathy is a disorder of major public health importance, and one of the major causes of visual loss which cannot be corrected with glasses . The condition is due to damage to the small blood vessels that nourish the retina, the light-sensitive tissue that lines the back of the eye. There are often no symptoms in the early stages of diabetic retinopathy. Therefore, vision may not be affected until the disease becomes severe. At this earliest stage, microaneurysms occur. Microaneurysms are small areas of balloon-like swelling in the retina's blood vessels. 2. As the disease progresses, some blood vessels that nourish the retina are blocked. Many more blood vessels are blocked, depriving several areas of the retina of blood supply.