Figure 5  .

ICG guided feeder vessel photocoagulation. Very early phase ICG angiography at presentation (A) of patient with subfoveal occult CNV and visual acuity of 20/40. The early photographs show a horizontal choroidal vessel (arrow), intensely hyperfluorescent at the arterial choroidal phase, located in the superotemporal part of the posterior pole, outside of the foveal avascular zone. This vessel was considered to be the arterial feeder vessel of the CNV because it was only perfused for 3 seconds of the arterial phase, and was no longer visible thereafter. Furthermore, its perfusion was pulsatile, and its flow was in the opposite direction to that in the normal choroidal artery. The vessels below the feeding vessel were filling subsequently. Early phase of ICG angiography (B) immediately after focal laser photocoagulation of the feeder vessel shows hypofluorescence of the laser treated area superotemporal to the hypofluorescence of the neovascular lesion of the feeder vessel identified.