Fig. 7. Central areolar choroidal dystrophy. The presence of choroidal atrophy in this well-circumscribed macular lesion (A) is confirmed by persistent visualization of the larger choroidal vessels as seen on angiography (B). Peripapillary (pericentral) choroidal dystrophy. The areas of choroidal atrophy are well-demarcated and contrast with the areas of normal choroid (C, D). Crystalline retinopathy (of Bietti). The areas of choroidal atrophy correspond to areas of the retina where crystals are not present (E, F).