Fluorescein angiography of CNV FA patterns of CNV may be classified as classic, occult, or some combination of both. Classic CNV refers to a bright, lacy, and well-defined hyperfluorescent lesion that appears in the early phase and progressively leaks by the late phases (Fig 4-7). Occult CNV refers to more diffuse hyperfluorescence that takes 1 of 2 forms: (1) PED, either fibrovascular PED or vascularized serous PED, or (2) late leakage from an undetermined source.