Despite its advantages, PDT has some limitations and potential side effects:
Photosensitivity: Patients may experience photosensitivity, making their skin and eyes more sensitive to light for several weeks after treatment. Limited Depth Penetration: The light used in PDT cannot penetrate deeply into tissues, limiting its use to superficial or easily accessible cancers. Availability: PDT requires specialized equipment and expertise, which may not be available in all treatment centers.