Abstract
To describe a neovascular pattern associated with treatment-refractory neovascular age-related macular degeneration (AMD). A retrospective observational case series. Clinical practice. Twelve eyes of 12 patients with neovascular AMD in which a poor anatomic response to anti-vascular endothelial growth factor (VEGF) therapy was related to polypoidal choroidal vasculopathy (PCV). Slit-lamp biomicroscopy, optical coherence tomography, fluorescein and indocyanine green angiography. Snellen visual acuity (VA), anatomic response to therapy including presence or absence of retinal edema, hemorrhage, and lipid exudates. New or persistent PCV was identified in a cohort of patients demonstrating increasing macular exudation despite regular intravitreal ranibizumab (Lucentis; Genentech Inc, South San Francisco, California, USA) or bevacizumab (Avastin; Genentech Inc) injections for a minimum of 6 months. Treatment with verteporfin photodynamic therapy (PDT), PDT/anti-VEGF combination therapy, or continued anti-VEGF monotherapy resulted in complete resolution of exudation in 9 of 12 patients and partial resolution of exudation in the remaining 3 patients. Treatment-refractory neovascular AMD may harbor vascular abnormalities such as PCV. Modifications in therapeutic protocols may be indicated in order to improve visual and anatomic outcomes in this population.
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