Purpose: To evaluate the prognostic factors and effect of half-fluence photodynamic therapy (PDT) in the treatment of chronic central serous chorioretinopathy (CSC). Methods: We retrospectively reviewed fifty-six eyes of 56 patients with chronic CSC who underwent half-fluence PDT. Postoperative evaluation included improvements in visual acuity, changes in central macular thickness with the optical coherence tomography (OCT), and...

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