Fig. 26. Inset. Greatly thickened basal lamina under pigmented epithelial cell in (pe) pars plicata of 80-year-old patient. c, capillary. Higher magnification of area in inset shows mixed multilaminar and solid basement membrane with fine filaments, vesicles, and granular clumps, after fixation with Alcian blue to preserve glycosaminoglycans. (X 41,600; inset, X 10,330)