Photodynamic Therapy (PDT)

What is photodynamic therapy (PDT)?
Photodynamic therapy (PDT) is a procedure used to stop the leakage of abnormal retinal tissue in the back of the eye.

The procedure includes the use of a sensitizing dye, which is injected into the arm and absorbed by abnormal structures in the eye. These structures can then be activated by light and selectively treated without damaging the normal tissues.

What eye conditions is photodynamic therapy (PDT) used to treat?
This procedure is used to treat wet age related macular degeneration. By limiting the growth of abnormal blood vessels under the macula, photodynamic therapy may help prevent the progression of wet AMD. It does not restore vision to eyes that have already been damaged. But it may help prevent further damage to the retina and further vision loss.