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Linear cell density in the central region declines progressively with age, with the exception of rods. (A–F) Six cell categories of linear cell density at 3, 15, and 27 mpf. (A) Ganglion cells, (B) basal inner nuclear cells, (C) horizontal cells, (D) rods, (E) UV cones, and (F) RGB cones. Mean ± 1 SD, n = 5. (G) JB4-Feulgen histology of central retina at 3, 15, and 27 mpf.
