Comprehensive pre- and post- therapy and a longitudinal series of structure and function tests will be performed on all 20 enrolled patients. All patients will receive intravitreal injections performed in a designated clean room. The injections (Ranibizumab 0.5 mg in 0.05 ml) will be administered 4-5 weekly, for three injections then according to clinical need for a total of 12 months of follow-up. A maximum of 5 intravitreal Ranibizumab injections will be administered to patients who do not demonstrate any positive clinical response.