Abstract: Described herein is a method of treating a subject in need of treatment for pathological angiogenesis including administering to the subject a glycosaminoglycan linked either covalently or noncovalently to an anti-VEGF antibody, an anti-VEGF antibody fragment, an anti-VEGF protein, an anti-VEGF peptide, or an anti-VEGF aptamer. Also included is a glycosaminoglycan linked either covalently or noncovalently to an anti-VEGF antibody, an anti-VEGF antibody fragment, an anti-VEGF protein, an anti-VEGF peptide, or an anti-VEGF aptamer.