Avastin and Lucentis are drugs that suppress the growth of abnormal vessels under the retina. The drug is injected into the eye. A course of 3 or more injections every 4-6 weeks will be needed. Treatment may be for a minimum of about 4 months but many need to continue for two or more years. These drugs are very effective and the first line treatment. All other treatments are alternatives if there is an incomplete response.