The present invention provides antibodies that bind to platelet derived growth factor receptor beta (PDGFR-beta) and methods of using the same. According to certain embodiments of the invention, the antibodies are fully human antibodies that bind to human PDGFR-beta with high affinity. The antibodies of the invention are useful for the treatment of diseases and disorders associated with PDGFR-beta signaling and/or PDGFR-beta cellular expression, such as ocular diseases, fibrotic diseases, vascular diseases and cancer.ANTICUERPO ANTI-PDGFR-BETA (3374N), UNA COMPOSICION FARMACEUTICA Y USOS PARA PREPARAR UN MEDICAMENTO UTIL PARA TRATAR UNA ENFERMEDAD OCULAR EN UN SUJETO.