Retinal and Choroidal Alterations Following Photodynamic Therapy

Photodynamic therapy (PDT) has been reported as an effective method of treatment in patients with subfoveal choroidal neovascularisation (SFCNV) caused by age-related macular degeneration (AMD), presumed ocular histoplasmosis syndrome (POHS) and myopic maculopathy (No Authors, 1999; Bressler, 2001; No Authors, 2001). The basic mechanism of PDT is the light activation of photosensitizing agent based on its absorption profile. PDT involves two crucial steps;