Atik A, et al. – This research inspected the macular sensitivity changes after half–dose photodynamic therapy (PDT) for chronic central serous chorioretinopathy (CSCR). An improvement could be brought about in the macular sensitivity in CSCR by half–dose PDT, along with the improvement of visual acuity and retinal thickness. The therapeutic outcome at 1 month, could serve as a predictor of the final treatment response.