What does it involve?
Photodynamic therapy is a treatment that involves the intravenous injection of a photosensitive drug, which is subsequently activated in the retina by applying a special light to the affected area.
When is it carried out?
Currently, this therapy is not used as extensively as anti-angiogenic injections for the treatment of wet AMD. It is used in some specific subtypes of wet AMD and, occasionally, in combination with anti-angiogenic drugs to treat resistant forms of neovascular AMD.
The same as for anti-angiogenic injection, but also essential is a fluorescein angiogram.
Before the surgery
Since a photosensitive substance is injected into the patient’s vein, after treatment the patient should avoid exposure to direct sunlight for two days to avoid the risk of burns.
PDT is similar to laser treatment, but differs in that the process does not cause discomfort to the patient.
PDT is a non-invasive technique, and, as such, the risks are minimal.