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Purpose  The aim of this study was to evaluate the efficacy and safety of photodynamic therapy (PDT) combined with intravitreal vascular endothelial growth factor (VEGF) inhibitors compared to those of PDT alone in the treatment of polypoidal choroidal vasculopathy (PCV).    Methods  A systematic search of Pubmed, Embase, and the Cochrane Library was performed to identify all comparative studies that compared the outcomes of the two approaches. Outcomes of interest included visual outcomes, anatomic variables, and adverse events.    Results  Two randomised controlled trials and nine retrospective studies including a total of 543 cases were identified. At three and six months post-injection, no significant difference in visual acuity was found in the combined therapy group compared with the PDT monotherapy group, with pooled weighted mean differences (WMDs) of 0.074 (−0.021, 0.17) at three months and 0.082 (−0.013, 0.18) at six months. However, the mean changes in visual acuity at month 12 in the combined therapy group were significantly better than those in the PDT monotherapy group, with pooled WMDs of 0.11 (0.012, 0.21). Similar efficacy was found at 24 months (WMD: 0.21; 95%CI: 0.054, 0.36; P = 0.008). Patients in the combined therapy group also might benefit from reduced retinal haemorrhage (OR: 0.32; 95% CI: 0.14, 0.74; P = 0.008). Polyp regression, recurrence of PCV, central retinal thickness reduction, and pigment epithelial detachment resolution did not differ significantly between the two treatments.    Conclusions  Combined treatment appeared to result in better visual acuity and lower retinal haemorrhage. However, combined treatment did not affect the resolution and recurrence of lesions. Given the inherent limitations of the included studies, future well-designed RCTs are awaited to confirm and update the findings of this analysis.

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Combined Intravitreal Anti-VEGF and Photodynamic Therapy versus Photodynamic Monotherapy for Polypoidal Choroidal Vasculopathy: A Systematic Review and Meta-Analysis of Comparative Studies