Figure 7 of Pendergrass, Mol Vis 2011; 17:2672-2684.

Figure 7. Left and right halves of a 29 year typical old Rhesus monkey lens stained with Dapi to show lack of internalized nuclei. None of the old monkeys demonstrated any significant increase with age in internal nuclei or nuclear fragments although two were noted to have cataracts by the veterinarian at the site of origin. Other details are as described in legend to Figure 1.