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Comparison of BCVA pre- and 6 months post-PDT. At 6 months follow up after photodynamic therapy (PDT), the best corrected visual acuity (BCVA) of patients with disease duration longer than 3 months was significantly better than BCVA pre-PDT. However, BCVA was similar pre- and post-PDT for patients with disease duration of 3 months or less (* indicates statistical significance).
