Fluorescein angiography of an eye with CNV. A, The choroid displays delayed filling. By the time dye reaches the central retinal artery, only a few choroidal vessels contain dye. B, In the early laminar-filling stage, a large portion of the choroid still shows poor filling. C, In the arteriovenous stage, the choriocapillaris appears uniformly filled. The clearly defined network of choroidal neovascular vessels is revealed in the central macula. D, The late-phase angiogram reveals leakage around the vessels with the earliest filling, an image consistent with classic CNV. There is also late staining and mild leakage from a poorly defined region (arrows), which is consistent with occult CNV.