Figure 3. Assessment of electroretinogram parameters for each of the treatment groups at 4 weeks post-implantation. Symbols represent the different microphotodiode array (MPA) and infrared (IR)-treated groups while the white bar represents the average of all the subretinal electrical stimulation (SES)-treated eyes, which were not significantly different. A: Amplitude ratios for maximum a-wave (A), maximum b-wave (B) and Vmax (C) were significantly greater in SES-treated eyes compared to the controls (p<0.001). D: Logσ showed that retinal sensitivity was greatest in eyes treated with SES compared to the controls (p<0.001). Animal numbers are the same as listed for Figure 2. Error bars represent ±SEM.