Fig. 19 Macular retinal pigment epithelium of a 97-year-old woman showing the basal linear deposit (BLD) internal to the basement membrane (BM). The retinal pigment epithelium has no basal infoldings and no apparent attachment foci to anchor the cells to Bruch's membrane. Clefts (C) in the cytoplasm may be elements of the Golgi apparatus. The asterisk marks subretinal pigment epithelial proteinaceous fluid (Ph, phagosome; ×4,600).