Figure 3. Quantification of fluorescence intensity at the lesion site after fluorescein angiography. The _{Δlight intensity} is the difference between the mean values from light intensity at the lesion site and the mean values from light intensity of an area close to the lesion site. Four weeks postinjection, the Δ_{light intensity} at the lesion site was on average six times higher in eyes that were injected with HC Ad.VEGF-A compared to the eyes that were injected with HC Ad.FK7 (control). The highest/lowest Δ_{light intensity} at the lesion site is indicated by the error bars.