Short-and Long-Term response of choroidal neovascularization to anti-angiogenic treatment

Choroidal neovascularization (CNV) examination by optical coherence tomography angiography (OCTA) scans gives sharper vascular images than with fluorescein angiography (FA) or indocyanine green angiography(ICGA). Feeder vessel trunks or feeder vessel bundles are easily seen, and smaller collateral branches, loops, and peripheral anastomoses are well identified. FA or ICGA1,2 that were used till very recently in the study of CNV did not allow precise visualization of the CNV, but gave blurred images of the vascular net, due to early dye leakage.