Fig. 15 Stargardt's disease. Fluorescein angiography in arteriovenous phase shows an oval zone of retinal pigment epithelium (RPE) transmission window defect within the central macula. The hypofluorescent spots correspond to pigmentations developing within this area (see Fig. 14). Transmission pigment epithelial window defects within the remainder of the posterior pole relate to many of the flecks not well seen on Fig. 14.