“…1 Although anti-VEGF therapies inhibit growth and permeability of new vessels and help prevent early CNV development, multiple retreatments are needed in most cases, and established CNV may be resistant to VEGF inhibition. 2 Photodynamic therapy (PDT) with verteporfin has been shown to occlude established CNV, but causes increased VEGF expression, which may lead to CNV recurrence.…”