Figure 8. Light microscopic graphs of the retina and spleen. A and B are from the spleen tissue. The A serves as a negative control, and the B serves as a positive control for the terminal deoxynucleotidyl transferase dUTP nick end labeling (TUNEL) assay for the retina. D is from study eye that received an intravitreal injection of 250 μg of hexadecyloxypropyl cytarabine 3’,5’-cyclic monophosphate (HDP-cP-Ara-C), and frame C is from the fellow control eye of the same rabbit. Both retinas show normal structures and negative apoptosis staining (82.5X).