Age-Related Macular Degeneration Other Etiologies of Choroidal Neovascularization Diagnostic Imaging for Photodynamic Therapy: Fluorescein Angiography and Optical Coherence Tomography Treatment of Subfoveal Choroidal Neovascularization Photosensitizing Agents Treatment of Age-Related Macular Degeneration with Photodynamic Therapy Treatment Protocol of Photodynamic Therapy Practical Applications of Photodynamic Therapy Complications of Photodynamic Therapy Alternative Applications for Photodynamic Therapy