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904     PARTE II,  SECCIÓN 15 OFTALMOLOGÍA


                ■ Nutrición                                             sanguíneo coroidal; reduce
                                                                        simultáneamente la velocidad, por lo
                   • Fomentar alimentos ricos en ácidos grasos
                                                                        que puede no haber mejoría de la
                     omega-3 (salmón salvaje, frutos secos,  A A  1     perfusión total.
                     semillas de lino) o suplementos de DHA
                     500-800 mg/día.
                                                                    ■ Fitoterapia
                   • Incremento de los alimentos ricos en
                     carotenoides, como luteína y zeaxantina  A A  1  • Se ha demostrado que Ginkgo biloba
                     (verduras de hoja verde oscura).                   mejora el flujo sanguíneo ocular en un  B B  2 2
                                                                        23%.

                ■ Suplementos                                         • El cardo mariano es la fuente principal de
                                                                        silimarina bioflavonoide, un adyuvante
                   • Los complejos vitamínicos han sido
                                                                        principal de la función de los hepatocitos
                     el centro de muchos estudios      A A  1           que, por su parte, contribuye a la salud
                     epidemiológicos a lo largo de los años.            ocular.
                     Se sabe que la combinación de dosis bajas
                     de antioxidante ayuda a la función
                     macular; este hecho se ha evidenciado en       ■ Fitoterapia china
                     el estudio de referencia AREDS.
                                                                      • Si bien faltan datos clínicos, hay una
                   • Luteína: a dosis de 6-10 mg/día.                   abundancia de datos históricos acerca de
                                                                                                          C  2 2
                                                      A A  2 2          los beneficios del uso de fitoterapéuticos
                   • Vitamina C: en algunos estudios de                 chinos en la DMAE.
                     observación se ha demostrado que una  B B  2 2
                     cantidad de 1.000 mg/día es útil como
                     antioxidante, por lo que protege el epitelio   ■ Tratamiento con láser
                     pigmentado de la retina frente a
                                                                      • El tratamiento con láser es la mejor
                     estresantes oxidativos.
                                                                        medida en patologías más avanzadas.
                                                                                                          B B  2 2
                   • Arginina: se ha demostrado que una dosis
                     de 200 mg/día incrementa el flujo
                                                       C  2 2


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