Figure 2. Electroretinography responses of the right (OD) and left (OS) eyes for affected individuals in families F1 to F5. Each column presents a) the rod response through 0.01 cd⋅s/m² flashlight (dark adapted), b) the combined rod-cone response through 10.0 cd⋅s/m² flashlight (dark adapted), and c) the single cone response through flicker light at the 30 Hz frequency (light adapted). Electric responses are noted in a and b waves for flashlight or positive (P) and negative (N) for flicker light.