Figure 3. Relative distributions of mitochondrial lengths. Histogram plots show the relative distributions of mitochondrial length for 0 µM (A-C), 50 μM (D-F), 200 µM (G-I), and 600 µM (J-L) menadione-treated lenses at 4 h, 24 h, and 48 h. Only mitochondria less than 26 µm in length, comprising a minimum of 95% of the total number of mitochondria, are shown. Percentages indicating the cumulative relative frequency of mitochondria ≤8 µm in length are also shown on each graph. Asterisks (*) denote significant change over time within a given concentration treatment group with respect to the 4 h time point. Daggers (†) denote a significant change in relative distribution for a given mitochondrial size with respect to 0 µM-treated lenses. A general shift toward a greater relative frequency of smaller mitochondria as a function of both time and concentration is observed.