Figure 5 of Lei, Mol Vis 2009; 15:1374-1382.

Figure 5. Dark-adapted ERG a-wave and b-wave responses-intensity curves in C57BL/6J mice. In all animals, one eye was injected subretinally while the contralateral eye was untreated. A, B show HEPES-treated mice and C, D show AAV-9.RSV.AP-injected mice. The left column shows the 3-month-old groups (n=5 for each group) and the right column shows the 12-month-old groups (n=5 for each group). The filled symbols represent the injected eyes, and the open symbols represent the untreated eyes. Error bars indicate the standard deviation from the mean (mean±SD).