Figure 4 of Schatz, Mol Vis 2012; 18:1147-1155.

Figure 4. Full-field electroretinography in our male patient with a tapetal-like reflex. Amplitudes and implicit times were within normal limits after standard dark adaptation (left panel); however, a significant increase in response was seen after prolonged dark adaptation (right panel). The following abbreviations apply: μV is short for microvolt and ms is short for milliseconds.