Photodynamic therapy may be used as an adjunct to treatment with Avastin or Lucentis for wet Macular Degeneration. A dye called Visudyne is injected into a vein in the arm and travels to the eye. It adheres to the abnormal vessels under the retina. The retina is then exposed to a low energy laser beam that selectively destroys the abnormal vessels without damaging the overlying retina. Several treatments are usually needed over a 2-3 year period to completely destroy the abnormal blood vessels.
