Figure 4 of Akula, Mol Vis 2008; 14:2499-2508.


Figure 4. Relations of neural and vascular parameters for 50/10 model (red), 75 model (green), and control (blue) rats. Symbols indicate age at test (key). Postreceptor sensitivity, Sm, is plotted as a function of rod photoreceptor sensitivity, Srod (top panel). Arteriolar tortuosity (TA) is plotted as a function of Srod (middle panel) and Sm (bottom panel). The left ordinates and bottom abscissae are expressed in derived (Equation 5) ΔLogNormal units; the right ordinates and top abscissae are linear values. Stippled lines indicate the means for the P25–P26 controls. Solid lines are orthogonal linear regressions through all the data. Low Srod was significantly related to low Sm (r=0.35; p=0.009) and high TA (r=-0.40; p=0.003). Low Sm was also significantly related to high TA (r=-0.62; p<0.001).